Engine quest heads on LA pushrod length
04-13-2018, 02:16 PM
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Engine quest heads on LA pushrod length
I'm building a 318 LA block with the engine quest heads. I was following an article on hot rod magazine that built this same setup except with a 360 mag block. They said to use 6.900" pushrods but those are about 3/4" short! I also read up about the mopar pushrods that are 7.625" but those are the right length for a hydraulic flat tappet cam and lifters, i am running a hyrdraulic roller cam and roller lifters. Any tips on that pushrod length?
04-13-2018, 02:37 PM
#2
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Welcome.
After spending money on machine work and new parts, Rocker Arm geometry/Valve Tip scrub is worth the time mocking up and checking then measuring rod length. I would not go on someone's say so or a guess, valve train geometry is critical on these engines.
After spending money on machine work and new parts, Rocker Arm geometry/Valve Tip scrub is worth the time mocking up and checking then measuring rod length. I would not go on someone's say so or a guess, valve train geometry is critical on these engines.
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