243 heads
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Joined: Oct 2016
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243 heads I have a 2002 ws6 trans am automatic car with 3.23 gears. It has tsp 1 3/4 lts, ory, ported stock tb, 160 t. stat, slp lid, slp dual dual catback, and circle d 278mm 3200 converter. I'm thinking about getting a vinci 216 224 cam with 585 lift with a 115 lsa or 113 lsa. How much improvement would stock unported 243s be over my stock unported 241s and would it be worth it for all the labor involved. I can get a stock pair of rebuilt 243s for $600.
If you do some searching around you'll find a ton of threads on the power difference some with before/after dyno graphs so it will give you a nice idea of what to expect.
I say go for it. If you're already in there to swap in a cam and the associated valve train components then it's really not much more work to swap the heads. If you do decide to install 243s, I'd suggest getting some .40" cometic head gaskets to improve your quench and boost the compression further.
I say go for it. If you're already in there to swap in a cam and the associated valve train components then it's really not much more work to swap the heads. If you do decide to install 243s, I'd suggest getting some .40" cometic head gaskets to improve your quench and boost the compression further.
If you do some searching around you'll find a ton of threads on the power difference some with before/after dyno graphs so it will give you a nice idea of what to expect.
I say go for it. If you're already in there to swap in a cam and the associated valve train components then it's really not much more work to swap the heads. If you do decide to install 243s, I'd suggest getting some .40" cometic head gaskets to improve your quench and boost the compression further.
I say go for it. If you're already in there to swap in a cam and the associated valve train components then it's really not much more work to swap the heads. If you do decide to install 243s, I'd suggest getting some .40" cometic head gaskets to improve your quench and boost the compression further.
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If you were just going to change heads and not do anything to them? 862s would be the way to go if you haven’t purchased the 243s. Then, use the money you saved for a pair of 3.910 bore .040 cosmetic head gasket. Said the guy 2-1/2 years later...jeez
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Joined: Jan 2017
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Duped by an old thread. This seems to be a trend recently.
