Valve, runner, and flow specs??

chris94SCmt

Registered User
anyone know the stock valve sizes, flow speck for the stock heads, and intake, also do u know the duration and lift of the stock cam?

thanks
chris
 
stock size

At least for stock 89 & 93 the exhaust is 1.46 and the intake is 1.78. Manley calls both stem sizes 11/32 though the 89 shop manual calls for different oil seals and slightly different stem size for exhaust & intake.

Rock
 
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