I'm just curious of this, consider SC cars only. I know the Series III heads have bigger valves and breath a bit better. So can you switch the Series III heads on to a Series II motor with little/no machine work?
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I'm just curious of this, consider SC cars only. I know the Series III heads have bigger valves and breath a bit better. So can you switch the Series III heads on to a Series II motor with little/no machine work?
Yup, they don't require anything special, your good to go.
Edit: The difference in valve size is very small, you likely won't notice any gains just from that.
Would it need a tune on the dyno afterward to compensate for the larger valves? Or is it just bolt up and go?
No tune, just bolt up, not really worth it if that's the whole reason for the swap tho.
Any gains right off the bat, or does it just open up more potential? Not looking to swap as a must but I might consider if I see a Series III gtp in a junk yard haha
Its hard to say, I've got series 3 heads on my 98, but I couldn't tell you the difference, I did a full cammed build as I did it.I'm guessing you wouldn't even tell the difference, we're talking minimal valve difference.
You won't notice ANYTHING.
If anything, put headers on it while the heads are off.
Then you'll notice some gains.
I put ported L32 heads and an XP cam on my 2001 gtp and it made more power. I would never consider putting stock unmodified L32 heads on a car without having them ported with a valve job and at least 90 lb valve springs, and just doing heads without a cam or high ratio rockers makes no sense.
if the op did find a set of good L32 heads at the junkyard and the price was right, they would probably be worth buying, but only to port and install in conjunction with a cam. is this horse dead yet?
I don't know, you keep beating it
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