243 heads 59cc with upgraded springs??

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02-12-2017, 10:59 AM

1TZSL0

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243 heads 59cc with upgraded springs??

Will my valve Train work with a set of 317 heads that are 72cc? I want to swap my pushrods Springs valves rockers and all.

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02-12-2017, 11:06 PM

wannafbody

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If you have a LS1 then it should but you will lose some compression ratio.

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02-13-2017, 12:46 PM

omc8

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Quote:

Originally Posted by 1TZSL0

Will my valve Train work with a set of 317 heads that are 72cc? I want to swap my pushrods Springs valves rockers and all.

Need more details , are your components stock or do you have shortened pushrods ? And 317s are 71cc

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02-14-2017, 03:37 PM

1TZSL0

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Quote:

Originally Posted by omc8

Need more details , are your components stock or do you have shortened pushrods ? And 317s are 71cc

71.06 to be exact. But my ported 243 were milled to 59cc with stock rockers and upgraded Springs. So I am not sure if the push rods are shortened till I remove my heads.

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