Small Block Chevrolet SR, SR Torquer, & Motown Cylinder Heads by World Products

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Small Block Chevrolet SR, SR Torquer, & Motown Cylinder Heads is listed here

• Automotive » Parts & Accessories » Car & Truck Parts » Engines & Components » Cylinder Heads & Parts

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[View page 1] chevy v8 s/r equipped with manley streetflo stainless steel valves pre 1987 accepts both perimeter and center bolt covers world s stock replacement small block chevrolet heads make it easy to rebuild engines economically features 7-bolt exhaust pattern for max versatility extra thick deck and walls flash world castings #043600 and #043610 are accepted by nhra as replacements for chevy 041 186 291 292 462 and 492 cylinder heads exclusive right castŪ technology assures optimum port accuracy universal end pads accept both early and late model accessories hardened steel exhaust seats compatible with today s unleaded gasolines extra thick decks and walls for improved reliability all heads come with screw-in rocker studs machined valve cover rails eliminate leaks here are the oem casting numbers that world s s/r small block heads replace world #043600 gm 333882 460703 462624 468642 3911032 3927186 3927187 3932141 3946813 3947041 3970126 3973414 3973493 3974387 3981598 3986339 3998920 3998

[View page 2] s/r torquer equipped with manley streetflo stainless steel valves accepts both perimeter and center bolt covers our lowest priced high performance small block chevy 2.02 cylinder heads screw-in rocker arm studs leak-free fully machined valve cover rails stock port locations for true bolt-on installations universal end pads accept all early and late model accessories exclusive right castŪ technology assures optimum port accuracy important note world s/r torquer cylinder heads are accepted as stock replacements by most oval tracks and sanctioning bodies an improved replacement for the factory chevrolet 327-350-400 cylinder heads world s exclusive s/r torquer series features 170cc intake runners and can provide up to a 30 horsepower increase over most oem castings note however that these heads are accepted by many racing associations as stock and are 50-state emissions legal s/r torquer heads accept early and late model accessories the exhaust valve seats are hardened to provide compat

[View page 3] sportsman ii screw-in rocker arm studs accepts both perimeter and center bolt covers equipped with manley street-flo stainless steel valves the original cast iron high performance small block chevy heads are now better than ever bolt on 30-70 hp leak-free fully machined valve cover rails available with either straight or angled spark plug holes important note world sportsman ii cylinder heads carry c.a.r.b eo #d-343-1 and are the only 50-state legal cast iron hi-po heads exclusive right castŪ technology assures optimum port accuracy universal end pads accept all early and late model accessories continuously improved since its 1987 introduction the sportsman ii is still the industry s most popular cast iron high performance head featuring right castŪ 200cc intake runners fast-burn chambers and your choice of angled or straight plugs they re good for 30-70 horsepower increases right out of the box they are the aftermarket s only 50-state emissions legal cast iron high performance cylind

[View page 4] motown motown leak-free fully machined valve cover rails accepts both perimeter and center bolt covers high-flowing cast iron cylinder head for small block chevy engines that s perfect for big-inch motors screw-in rocker arm studs available with either straight or angled spark plug holes technical specifications material high density cast iron valve seats integral intake hardened steel exhaust valve guides integral cast iron valve spring seats machined for 1.250/1.550 springs stepped valve size 2.080 x 1.600 rocker arm studs screw-in style with hex 7/16 shoulder furnished with assembly accessory flange stock locations 7-bolt universal pattern included in assembly manley racemaster 2 models or severe duty 3 models 1-pc forged stainless steel valves with swirl-polished heads ring band 2 models or pc 3 models style seals 1.440 2 models or 1.550 3 models valve springs manley 7° 2 models or 10° 3 models chrome moly retainers keepers and pushrod guide plates recommended instal

[View page 5] motown 23° new small block chevy heads for street racing applications choose between versatile 215cc and high-flow 235cc screw-in rocker arm studs perimeter style valve cover attachment universal end pads accept all early and late model accessories leak-free fully machined valve cover rails available with 215cc and 235cc intake runners note must use .150 offset intake rocker arms exhaust ports raised .250 world products introduces two great new cylinder heads for small block chevy applications first is the motown 23° with 215cc intake runners this vortec-style head combines high velocity ports with a quick-burn style combustion chamber this is perfect head for serious street performance for larger displacement small blocks as well as highly modified engines world s new 235cc intake motown head is the answer with huge 2.100 intake and 1.625 exhaust valves coupled up with highly efficient port designs and right castŪ technology these heads flow incredibly well the screw-in rocker ar