cleaner express products · excellent for street or strip this air cleaner allows ... 14 base has the triple knock out holes for the optional #2081 smog fittings fits ... luster monte carlo 1983-85 with 305 v8 engine and quadrajet carburetor 5191 ... chevy/gmc pick-up trucks 1988-92 5191 chevy/gmc pick-up trucks 1993-95 w/two stud ... top 9162g 9161g 9155g 9162g note legal forsale or use on race vehicles which may ... never be used on highways see page 8 for replacement elements 7 ...
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wing bolts feature extra long studs for the thick cast valve covers · available ... in 3 lengths for short or tall valve covers · packaged 4 ... wing bolts feature extra long studs for thicker gaskets and hold down tabs · ... chrome plated for beauty and long life durability · ... standard y top 1 /4 20 x 5/8 thread for stock valve covers chevrolet v-8 9824 ... 1 /4 20 x 1 thread for custom stock covers v-8 cast covers ... chrysler wedge enginesstock corvette 1964 and up stock fordv8 260 ... -302 cu in 9826 5 /16 18 x 1 thread for cast coversford v-8 352-390-427 cu in ... later 9829 deluxe top 1 /4 20 x 5/8 for stamped covers 9827 1 /4 20 x 1 for ... nut style to be used with a 1/2 socket for speed tightening · clear anodized ... per kit 43/8 long 2 per kit 6305 6305 chevy small block center bolt valve cover ...
high performance 2007 parts pro master catalog edelbrock ... efi systems designed for non-emission engines these high-performance multi-point ... injection using a speed/density system for control over fuel and spark edelbrock ... and 15 gasoline not only improves performance but reportedly lowers greenhouse gas ... carburetor is manufactured specifically for e85 fuel in order to take advantage of ... new edelbrock e85 carburetor improved performance over our standard carb with regular gas ... octane rating of e85 makes it suitable for use in high compression engines ... listing of all vital parts required for the conversion of the vehicle for e85 ... you can build a highcompression high-performance engine that uses e85 fuel a renewable ... available marine carburetors #1409 for use in marine applications with ...
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2007 parts pro master catalog high performance power+plus throttle bodies professional ... all butterflies are hand fitted for accuracy in the main bore a critical ... fit and performance area available in oe appearing satin or ... finishes powertm throttle bodies for lt1/ls1 powerflowtm fuel pumps electric ... housing it will supply enough fuel for carbureted engines in the 250 to over ... you want less pressure than listed for the pump both inlet and outlet ports ... rich red and bright blue part no 10710 for carbureted applications application ... 69705 69707 69724 69725 piston style for sb chevy the reciprocating piston uses ... only 25 lbs of pushrod force a popular conventional diaphragm high- ... performance pump requires 125 lbs operates at a ... 69200 69203 powertm throttle bodies forford mustang v8s choosing your throttle ...
high performance 2006 parts pro master catalog energizer ... interested in hopping-up the flathead ford v-8 engine in his own car today over ... cam lifter kits bring you extra performance value and savings every new camshaft ... camshaft a set of premium quality performance designed anti pump-up hydraulic ... matched components and great street performance at one low price all applications not ... listed call for yours 260h 266h 272h 278h 284h designed ... for street driving the 260h features a ... fuel economy and good low-end power for daily usage off road and tow vehicles ... designed for daily usage light towing off-road ... mid-range torque horspower designed for daily usage towing off-road and street ... performance the 272h features a good idle with ... performance and fuel efficiency designed for daily ...
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2006 parts pro master catalog high performance rocker arms accessories crane cams was ... interested in hopping-up the flathead ford v-8 engine in his own car today over ... -free operation an added advantage for street operation is the friction ... or in sets description part no chevy sb 1.60 ratio 7/16 stud increased ... dia clears 1.630 od spring 11755-16 v8 55-87 262-400 stock ratio with standard ... stud diameter 11750-16 v8 55-87 262-400 stock ratio with enlarged ... stud diameter 11752-16 chevy bb 396-502 1.70 ratio 7/16 stud stock ... ratio standard stud diameter 13750-16 chevy bb 396-502 91-00 454-502 gen v vi 1. ... ratio standard stud dia 13755-16 ford sb v8 s 62-94 221-302 351w 1.60 ratio ... ratio standard stud diameter 36750-16 fordv8 s 69-82 351c 351m 400 boss 302 351 ...
2006 parts pro master catalog high performance edelbrock efi systems designed for non- ... emission engines these high-performance multipoint electronic fuel injection ... injection using a speed/density system for control over fuel and spark edelbrock ... computer eps 800 carburetors calibrated forperformance designed and calibrated for ... maximum street performance with most performer rpm rpm air-gap and ... #1413 manifolds on large cubic-inch engines extra performance features include a ... non-emission marine carburetors #1409 for use in marine applications with ... with teflon-coated shafts and pump arm for maximum protection other features ... fuel inlet fitting tube in airhorn for fuel pump vent 5-1/8 flame arrestor ... lever and a revised secondary system for improved transient performance in ...
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high performance 2006 parts pro master catalog intake ... re building a daily driver ultra high-performance street machine or race car an edelbrock ... has characteristics that make it ideal for the application for which it is ... are the heart of the edelbrock line forperformance improvements on the street ... are exceptionally versatile producing performance gains for many applications street ... performance off-road rv and marine they operate ... gas recirculation replacement versions for many engines application #2101 amc 290- ... -egr 262-400 up to 86 non-egr 262-400 v8 96 and later vortec cast iron heads 262 ... non-egr 305-350 tbi 87-95 egr 305-350 v8 with oem 4 bbl 87-95 egr 396-502 oval ... -360 72-86 only egr 413-440 egr/non-egr ford 289-302 not boss non-egr 351w non-egr ...
and 8 hold-down clamps. A. 141-361 ....Chevy Bowtie, Metallic Gray Valve Covers, ... Tall w/ Baffle. Chevy SB V8. B. 141-362 ....Chevy 14" Classic, ... w/ Bowtie Center Nut. C. 141-363 ....Chevy Bowtie Timing Chain Cover, Metallic ... Gray. Chevy SB V8 69-91 and V6/90 . D. 141-364 ....Chevy ... Valve Cover Wing Nuts, Metallic Gray Chevy SB, BB V6. 8 pcs. E. 141-365 ....Chevy ... Gray, 3" Diameter. F. 141-366.....Chevy Valve Cover Hold-Down Clamps, Metallic ... Gray, Chevy SB V8 V6/90 thru 1986. 8 pcs. Master Cylinder ... line master cylinder covers are offered for the most popular applications. Supplied ... prominently onto these finned pans for maximum visibility. Stock-pan depth. ... -251 ....Turbo 400 Timing Chain Covers For use on Chevrolet small-block V8 1969-91 ...
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oil leakage. Fits Chevrolet small-block V8 and V6/90 engines through 1986. 4 per ... or stamped black crinkle valve covers. For use in valve covers with grommets ... 3" dia., High-Tech Gray (shown on pg 2) For use in valve covers with grommets ... . 141-619........Push-in, rectangular For use with oil filler tube (PROFORM P/N ... . 141-617........Push-on, 3" dia. For use with Chevrolet style holes. ... may be necessary to remove one gasket for proper clearance. 141-618........Twist- ... Bowtie embossed and raised on top. For valve covers with 1.22" diameter hole ... epoxy-coated GM Emblem in the center. For Chevrolet style holes. Manufactured ... Bowtie Emblem is centrally located for maximum visibility. The wire holders ... purchasing, check exhaust manifold for correct usage. For clearance reasons, ...
gm licensed performance parts dress-up kits part 141-900 shown ... on gm performance parts zz383 small-block crate engine ... part 141-360 shown on gm performance parts 350/290 hp small-block crate ... engine part 141-758 shown on gm performance parts 350/290 hp small-block crate ... engine street performance chrome kit latest look for chevrolet ... small-block v8 1958-86 this complete kit includes ... wording comes with everything you need for race day or show day d a b d f c c e a ... parts available separately a 141-616 chevy bowtie push-in air breather cap b 141- ... 902 chevy bowtie wing nuts red emblem c 141-903 ... chevy bowtie hold downs black red emblems d ... 141-904 chevy bowtie timing chain cover black red ... emblems e 141-905 chevy bowtie valve covers tall black red ...
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gm licensed performance parts bowtie emblem freeze plug inserts ... new black with raised emblem fits all chevy small block engines except ls-series ... valve covers chevrolet small-block v8 and v6/90º engines through 1986 4 per ... bowtie embossed and raised on top for valve covers with 1.22 diameter hole ... chrome stems fits chevrolet small-block v8 1958 86 and chevrolet big-block v8 1965 ... or stamped black crinkle valve covers for use in valve covers with grommets ... 141-365 push-in 3 dia high-tech gray for use in valve covers with grommets ... p/n 141-615 141-619 push-in rectangular for use with oil filler tube proform p/n ... or 1.82 opening 141-617 push-on 3 dia for use with chevrolet style holes ... may be necessary to remove one gasket for proper clearance 141-618 twist-on 3 ...
high performance 2006 parts pro master catalog valve ... and they re still a classic engineered for function and styled for good looks ... made of heavy-gauge polished aluminum for excellent heat control and valve train ... the famous edelbrock script description chevy 262-400 v8 59 later low profile no ... name chevy 262-400 v8 86-95 w/left breather hole centerbolt ... chevy 262-400 v8 59 later low profile chevy 262-400 v8 59 later tall profile ... pontiac v8 62-79 stock height chevy 396-454 v8 65 later tall profile ford ... profile amc 290-304-343-360-390-401 v8 stock profile no baffle chevrolet 262- ... 400 v8 59-86 low profile chevrolet 262-400 v8 ... 59-86 tall profile chevrolet 396-454 v8 65 later low profile chevrolet 396-454 ...
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2006 parts pro master catalog high performance gm restoration proudly wear the bowtie ... will maintain its great looks and performancefor years to come fabricated aluminum ... there are two designs one with no holes for no-holds-barred racing and a second ... 1.22-inch hole and gm-designed baffle for street use where permitted both ... chevrolet red billet mounting rails for maximum leak resistance and weigh ... fabricated aluminum valve covers fit chevy small block engines from 1958 through ... description part no description bb chevy clear coat finish no baffle bb chevry ... chevrolet black finish 141-802 street performance chrome kit for chevrolet smallblock v8 ... rubber washers description 58-86 sb chevyv8 polished 58-86 sb chevyv8 black ... crinkle 58-86 sb chevyv8 chrome plated 65-up bb chevy polished ...
line master cylinder covers are offered for the most popular applications. Supplied ... prominently onto these finned pans for maximum visibility. Stock-pan depth. ... call Fuel Pump Block-Off Plates For use on Chevrolet V8s. Stamped with the ... 7.04 Timing Chain Covers A. B. C. D. For use on Chevrolet small-block V8 1969-91 ... and V6/90 engines, with CHEVROLET Bowtie Emblems. ... Engineered to GM standards for reliable installation, this stamped ... , and it is a direct replacement for all late model small-block and V6/90 ... , Black CHEVROLET D. 141-363 ....S/B, V8 69-91 and V6/90 , Metallic Gray, Blue ... Bowtie, Red CHEVROLET For use on Chevrolet big-block, 1965-90 ... 79.41 Timing Chain Pointers For Chevrolet small-block V8 or V6/90 , ... , 1969-91. Technical Note: May be used for some pre-69 engines by relocating top ...
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Products 8 Some items may not be legal forsale or use in California or on any ... to turn a street carburetor into a high-performance carb: get that extra performance out of ... 25-50 HP with PROFORMs 100% NEW, high-performance carburetor main body (no re-built ... adjustable screw-in air bleeds, high-performance down-leg boosters. Get maximum air flow ... non-stick replacement gaskets and high-performance jet kit. PROFORM is a registered ... are registered trademarks of Holley Performance Products, Inc. This product is ... in original metering block. Component for use on Holley 650 CFM (#4777), 700 CFM ... requires 1 3/4 throttle body) Component for use on Holley 750 CFM (#3310) Vacuum ... by calling 1-270-793-0900 (ask for Extension 15), or visit their website: ... www.quickfueltechnology.c om for a complete list of parts and options ...
gm performance parts proudly wear the bowtie with our ... will maintain its great looks and performancefor years to come die cast valve covers ... rubber washers description 58 86 sb chevyv8 tall 87-up sb chevy centerbolt 65- ... up bb chevyv8 polished 141-108 141-130 141-142 black ... technical note production height chevy smallblock valve covers and valve ... applications description 58 86 sb chevyv8 short 58 86 sb chevyv8 tall w/ ... baffle 58 86 sb chevyv8 tall w/o baffle 87-up sb chevy ... centerbolt short 65-up bb chevyv8 short 65-up bb chevyv8 tall chrome ... chevrolet red billet mounting rails for maximum leak resistance and weigh ... valve cover features oversize bolts for fast removal a top and bottom section ...
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gm performance parts proudly wear the bowtie with our ... will maintain its great looks and performancefor years to come timing pointers ... sizes the large size is recommended for 14 and 10 air cleaner kits and the ... small for 6-3/4 and 4-7/16 air cleaner kits ... 20 and 5/16 18 studs description 69-90 chevy sb v8 or v6/90° with 6-3/4 or 7 ... balancer 69-91 chevy sb 8 balancer 65-91 chevy big-block ... no 141-200 141-202 141-201 may be used for some pre 69 engines by relocating top ... chain covers engineered to gm standards for reliable installation this stamped ... and it is a direct replacement for all late model small-block and v6/90º ... pointer description part no 69-91 chevy sb v8 and v6/90º engines with chevy ... oil seal gm #10111769 141-215 69-91 chevy sb v8 and v6/90º engines with chevy ...
and maintains optimum conditions for efficiency and performance. Supplied ... 20mm, 22mm . . . . . .$74.99 3952 13/16 ChevyV8 w/recessed land . . . . . .$74.99 ... 20mm, 22mm . . . . .$169.99 3954 13/16 ChevyV8 w/recessed land . . . . .$169.99 ... , providing a pressurized source of oil for the engine oil cooler. NOTE: A sandwich ... out from the block. Check beforehandfor adequate clearances. Shorter filters ... coolers. Conversion Radiator Looking for a high quality radiator for your ... or heading off road in your SB Chevy, Ford or Jeep conversion, Be Cool has a ... radiator for you. Our radiators are simple to ... under the most rigorous conditions forperformance and reliability. 65012 82-83 S-10 Std. ... Trans. ChevyV8 . . . . . . . .$319.99 68012 82-93 S-10 ...
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aluminum distributors, calibrated for your specific Chevy small or big block ... ignition module. 66996 (High wt.) Chevy SB BB Billet Dist. . . . . . . .$229.99 ... 66997 (Med. wt.) Chevy SB BB Billet Dist. . . . . . . .$229.99 ... 66998 (Light wt.) Chevy SB BB Billet Dist. . . . . . . .$229.99 ... Fits Ford '62-'83, 260 289 302 engines. A high performance unit, ruggedly built ... the same features as PROFORM's popular Chevy HEI distributors. Improves on stock; ... housing, both upper and lower bushings for added durability, and no voltage- ... .99 HEI Distributor The Proform 66940C for '74-'82 Chevrolet engines has no ... rebuilt components it has a high-performance control module, a hardened gear, a ... rotor. (Coil not included) 66940C ChevyV8 . . . . . . . . . . . . . .$99.99 ...
2006 parts pro master catalog high performance ultra-seal gaskets mr gasket ... revolutionized the performance market with high quality performance ... meet the increasing sealing demands of performance enthusiasts our commitment to new ... designed to withstand 600°f specially formulated silicone developed to be compatible ... a superior port seal required in a performance street racing engine application part ... 1.31w x 2.31h lg race port 86-91 350 v8 w/tpi all 396-454 1/16 thick cork ... use w/manifolds w/o upper bolt holes ford 65-67 289-302 exc factory hp 1/16 ... 1/16 thick 1.25w x 2.11h 86-95 302 v8 efi 70-74 351c-v8 4 bbl chrysler/dodge/ ... extra large square port 2.09 x 2.09 ford/mercury all 302 oval port 62-90 221- ... 400 oval port 1.58w x 1.96h 70-74 351c-v8 68-88 429-460 oval port 1.25w x 2.08h ...
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2006 parts pro master catalog high performanceperformance gaskets mr gasket ... revolutionized the performance market with high quality performance ... meet the increasing sealing demands of performance enthusiasts our commitment to new ... racing head gaskets utilize the latest performance technology the finest in new material ... nominal thickness .038 70-80 400 sb v8 flexible graphite core w/steam holes ... for street use non-retorquing 4.190 bore ... nominal thickness .038 all 396-454 bb v8 flexible graphite core elastomer coated ... bore compressed nominal thickness .038 ford/mercury 62-95 260 289 302 302ho exc ... supercharged and nitrous oxide engines made from viton coated spring steel two ... to engine block withstands shearing forces created from b-metal aluminum/iron ... 3165g 3166g 3167g 3168g 3169g 3170g chevy 350 lt1 92-97 gasket bore 4.040 .040 ...
performance automotive warehouse 818 678-3000 ... heads · bolt-on edelbrock performancefor amx javelin jeep more · designed for ... 1967-1991 343 360 390 and 401 c.i.d amc engines street legal street highperformance ... aluminum cylinder heads performer s/b chevyperformerperformer rpm amc · 54cc ... around a 9.5:1 compression in 401 v8s ede-60119 · 45° intake seat angle stock ... midto high-lift flow a direct bolt-on for 1970 and later engines with 1/2 head ... these heads include step-dowel pins for pre-1970 engines use edelbrock step ... washer kit ede-9693 on 1967-69 engines with 7/16 head bolts street legal ... kit ede1932 is required · designed for 302 327 350 and 400 c.i.d engines up to ... combustion chambers imede-60759 prove performance and retain stock compression ratio on ...
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performance automotive warehouse 818 678-3000 ... edelbrock cylinder heads street high-performance 396-454 bbc cylinder heads performer ... ultra highperformance heads sb chevy victor jr 23º · affordable maximum ... power head for competition and ultra high-performance ... · 530-580 hp potential out-of-the-box for a cost effective race-winning set-up · ... with a 12cc domed piston in a 350 v8 · accepts standard 23° valvetrain ... hardware victor jr 23° complete heads for mechanical flat tappet or hydraulic ... provides excellent seat-of-the-pants performance and crisp throttle response · semi-open ... .19 1.88 ede-60479 $999.95 street high-performance 396-454 bbc cylinder heads performer ... -o note check cam manufacturer s specs for compatibility with valve springs · ...
performance automotive warehouse 818 678-3000 ... pawengineparts.com performance street manifolds cyclone+plus aluminum ... -egr intake manifold idle to 5,500 rpm chevy 283-400 application part no prp-52001 ... egr intake manifold idle to 5,500 rpm chevy 283-400 application part no prp-52009 ... and application models available for small block chevy and big block chevy ... top of the line medium profile street performance manifold it is similar to the cyclone ... intake manifold idle to 5,500 rpm chevy 283-400 application part no price 57 ... $210.95 crosswind manifold is a high performance version of the prp-52020 or prp-52021 ... under the plenum chamber which provides for a flow of cooling air which keeps the ... crosswind aluminum intake manifold chevy 283-400 application part no price 1,500 ...
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performance automotive warehouse 818 678-3000 ... superchargers street supercharger kits for chevrolet v8 s these race quality ... other pulley combinations are available for other boost levels complete blower and ... choice of 6-71 or 8-71 8-71 small block chevy with #2810 6-71 blower kit #2920 8-71 ... part no tbs-2810 small block chevrolet v8 w/swp 6-71 blower kit ... 326100 tbs-2822 small block chevrolet v8 w/swp 8-71 blower kit ... 361100 tbs-2920 big block chevrolet v8 w/swp 8-71 blower kit ... accessories phone our expert tech line for assistance on selecting the correct ... blower for your application and tips on how to ... properly set up your engine for supercharged performance 300 intake ... systems these manifolds are not legal forsale or use on pollution-controller ...
high performance 2006 parts pro master catalog proform ... to professionals affordable enough for every toolbox tubing and pipe notcher ... tool designed for the serious fabricator 0 to 45 degree 1 ... or drive ratchet description part no chevy bb 1.610 id with 3/16 keyway 66899 ... ford sb buick and pontiac 1.385 id with 3/ ... 16 and 1/4 keyways 66900 chevy sb v6 and gm 4-cylinder engines 1.255 ... part no 66516 engine rotation adapter forchevy or fordv8engines easily ... supplied with 1/2 and 7/16 adapters for use with any engine block part no 66830 ... cam bearing installation tool forchevytm small block engines this kit contains ... springs the compressor arm slides for adjustment employing a locking pin for ... affordable an hex wrenches color coded for fast identification these proform® ...
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2006 parts pro master catalog high performanceproform tools proform makes specialty ... to professionals affordable enough for every toolbox socket assist essential ... for bolts with tight clearance spark plugs ... and header bolts 12-point for maximum finger traction set of three ... tool fits easily onto your rocker arm for pressure checks and will measure ... these precision scales are perfect for balancing pistons rods clutch weights ... this tool provides a positive stop for the piston when locating top dead ... stud remover and tap alignment kit forchevyv8 and v6 enginesbefore installing the ... heavy-duty screw-in studs required forhigh-performance valve train components ... during tightening with adjustability for bolts up to 2.75 long part no 66788 ...
high performance 2006 parts pro master catalog ... mr gasket brand provides a variety of performance and racing products for all parts of ... these valves fit small and big block chevyengines with screw-in style oil lifter ... back of the engine block they are not for use with hydraulic lifters packaged 2 ... easy to read universal to fit most engines part no 1570 #984g #983g #987g #988g ... degree wheel has color coded scales for instant read-outs made of sturdy ... camshaft spec card precision degreed for accurate readings the exhaust and ... design fits most chevrolet chrysler and fordengines part no 6120 crankshaft cam ... it can be used to advance the cam for increased low end torque and mid-range ... retarding the cam application part no chevy sb 283-400 long style stock replacement ...
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2006 parts pro master catalog high performance oil pans accessories moroso s deep ... problems run faster and win races bb chevy kicked-out sump street/strip pan sb ... chevy deep sump street/strip pan deep sump ... description painted steel sb chevy pre 80 blocks with driver-side dipstick ... for stock oil pump pickup increases ... rods description painted steel bb chevyfor stock or hv pump pickup part no ... 20401 24440 part no 20160 24150 sb chevy kicked-out sump street/strip pan kicked ... /flywheel combinations description bb chevy kicked-out sump integral scraper ... out sump pan w/integral scraper screen for stock or hv pump pickup part no 20403 ... 24440 part no painted steel sb chevy pre 80 blocks with driver-side dipstick ... 20190 painted steel sb chevy 86-up one-piece rear main seal pass ...
power pkg kits superchargers crate engines carbs access fuel pumps gaskets ... valve spring springs e kits amc 343-401 v8 1970-91 7530 7531 7101 7501 7116 7516 ... f f 5796 f f f f f f chevrolet 283-400 v8 a 1957-86 283-400 v8 w/vortec or e-tec ... 57-99 4.8 5.3 5.7 6.0l 1998-02 396-454 v8 oval-port 1965-90 396-454 v8 rect port ... 7808 7830 7813 7812 chrysler 340-360 v8 1964-91 383-400 v8 1959-79 413-426-440 ... v8 1959-79 ford 289-302 v8 1965-95 5.0l 1986-95 351w v8 1969-95 ... block 351c 390-428 fe 1958-76 429-460 v8 1968-87 oldsmobile 350-403 v8 1964-85 ... pontiac 350-455 v8 1965-79 check the part description in ... to determine if the part is legal forsale or use on pollution controlled motor ... vehicles chevy chrysler performer package for 350 ...
accel has been the leader in performance ignition systems and components for ... result in products that enable the performance enthusiast to reach peak performance ... and starters 52000 series street billet performance electronic breakerless distributor ... accel s 52000 series street billet performance electronic breakerless distributor ... vacuum advance with lockout insert for mechanical advance only operation a ... and weather tight connector recommended for use with electronic breakerless coils ... ignition systems applications chevrolet v8 262-502 vacuum advance pontiac v8 301- ... 455 vacuum advance fordv8 332-428 fe vacuum advance fordv8 221- ... 302 vacuum advance fordv8 351c 460 vacuum advance fordv8 351w ... vacuum advance mopar v8 413-440 rb vacuum advance mopar v8 273- ...
reducing rocker arms us made high performance pushrods and valvetrain tools and ... accessories primarily suited for street and sportsman racers you can ... afford to add high performance to your engine when you choose proform ... additive lubricants description ls1/ls6 engines 1.7 ratio ls1/ls6 engines 1.8 ratio new ... 66911c 66912c 66861c 66879 66878 66860c chevy sb 1.5 ratio 3/8 stud chevy sb 1.6 ... ratio 3/8 stud chevy sb 1.5 ratio 7/16 stud chevy sb 1.6 ... ratio 7/16 stud chevy sb 1.5 ratio 3/8 stud 8 pcs 1.6 ratio ... 3/8 stud 8 pcs chevy sb w/center hold-down valve cover 1.5 ... ratio 3/8 stud self aligning chevy sb w/center hold-down valve cover 1.6 ... ratio 3/8 stud self aligning chevy bb 1.6 ratio 7/16 stud ford sb 1.6 ... ratio 3/8 stud ford sb 1.6 ratio 7/16 stud ford 302 boss ...