Page 3 of Small Block Ford SR (2.9L V6), Man O'War Cylinder Heads by World Products

windsor jr/sr equipped with manley street-flo racemaster or severe duty stainless steel valves leak-free fully machined valve cover rails screw-in rocker arm studs bolts on to 1987-94 mustang engines with no loss of compression dual bolt pattern accommodates large custom headers the windsor series of cylinder heads come in both 180cc jr and 200cc sr models that combines high velocity and superior flow to produce excellent torque and throttle response in 5.0 engines with the jr being better suited to stock or slightly modified engines and the larger sr heads which have been designed in collaboration with leading ford racers are perfect for more serious performance applications the 58cc combustion chamber is sized for true bolt on compatibility and has been tweaked to optimize efficiency world s windsor-series cast iron cylinder heads provide a very cost-effective solution to getting serious power from a ford 5.0 motor without spending a ton of money and when it comes to value you can t beat the assembly packages from world.top grade components,like manley stainless steel valves are used as your assurance of reliability with world passing bulk buying advantages right through to customers they are 50-state emissions legal exclusive right castŪ technology assures optimum port accuracy 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 1.940 windsor jr or 2.020 windsor sr x 1.600 rocker arm studs accepts 7/16 screw-in studs exhaust flange stock port locations dual bolt pattern accommodates large custom headers included in base assembly manley street flo 1 models or racemaster 2 models forged stainless steel valves with swirlpolished heads ring band-style seals 1 2 models valve springs manley 7° chrome moly retainers recommended installation items rocker arms aftermarket roller rocker arms recommended however if stock rockers are to be retained use stud mounted rockers head gaskets fel-pro #9333pt or #1011-2 or equivalent caution #1011-1 is not recommended pushrods requires heat-treated pushrods spark plugs accepts 14mm .460 reach tapered seat 5/8 hex champion #670 or #802 or equivalent intake gasket fel-pro #90361 or equivalent exhaust gasket fel-pro #1415 or equivalent highly efficient high swirl heart-shaped combustion chamber right castŪ 180cc or 200cc intake runners are perfect for 5.0s windsor jr and windsor sr cast iron cylinder heads for small block ford 5.0 part 053030 053030-1 053030-2 053040 053040-1 053040-2 description windsor jr iron head windsor jr iron head windsor jr iron head windsor sr iron head windsor sr iron head windsor sr iron head intake 180cc 180cc 180cc 200cc 200cc 200cc cam hydraulic solid/hyd roller hydraulic solid/hyd roller valve dimensions bare 1.94 x 1.600 11/32 1.94 x 1.600 11/32 bare 2.02 x 1.600 11/32 2.02 x 1.600 11/32 spring specs bare 1.250 single 100 seat 1.437 dual 125 seat bare 1.250 single 100 seat 1.437 dual 125 seat max lift chamber 64cc .560 64cc .600 64cc 64cc .560 64cc .600 64cc 28 rev 2/07 cylinder heads

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