243 Valve question again

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Oct 12, 2013 | 09:39 AM

racels

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243 Valve question again

The valves on the stock 243 heads seem to be awful small. What is the biggest valve you can put on these heads? Who makes the lightest? 4.000 inch bore cyl

Thanks
Dan

Oct 12, 2013 | 10:44 AM

outkast6991

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From: lancaster,pa

Without changing the seats I believe the biggest is 2.02. What CID is the motor? Stock 2.0 valves when done right are plenty for most 364ci or less street/strip stuff

Oct 12, 2013 | 11:22 AM

PREDATOR-Z

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From: BFE

Turned down LS3 valves to 2.08, seat will have to be changed.

Oct 12, 2013 | 11:59 AM

racels

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I do not mind having the seats machined if its worth it.

Thank you for the replies.

I do not think the stock valves are going to be good enough for what I want. Its a grudge car. I am new to LS stuff I have always done SBF before.

Last edited by racels; Oct 12, 2013 at 12:06 PM.