zz4 385
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Racer
Joined: Nov 2008
Posts: 252
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From: Morehead KY
zz4 385
http://paceperformance.com/index.asp...&ProdID=198605
will this work with my 89 vette, using stock tpi unit, except with different runners and base?
will this work with my 89 vette, using stock tpi unit, except with different runners and base?
Pro
Joined: Mar 2005
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From: Rochester PA
Cylinder heads-Part # 12464298 Aluminum Fast Burn Head 62cc Combustion Chamber, 210cc Intake Runner Volume,"Fast Burn" Combustion Chambers with 2.00" Lightweight Hollow Stem Intake Valves and 1.55" Sodium Filled Exhaust Valves. LT4 Corvette Valve springs and lightweight retainers are used.This head has "D" shaped exhaust ports, and has Dual bolt pattern Intake manifold and valve cover configurations.
rk
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Racer
Joined: Nov 2008
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From: Morehead KY
Well the zz4 350 or the zz4 385, is probably the way i will go. I have trouble finding a miniram anywhere though. Ive heard that an lt1 intake will work if you modify it. What would I have to do to make that work? Would I have to have the computer tuned?
Le Mans Master
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TPiS.com makes the miniram. Sometimes you can find a used one in the for sale section.
Drifting
Joined: Feb 2003
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From: San Antonio Texas
A Vortec Base isn't needed with those Heads. Can't you find a Machine or Speed Shop in your area who could put together a 383 for you? You could use better parts than are in that Motor, for probably the same cost. Do some research and check out some places like Flatlanders. I personally don't like that Cam (Slow "acting" & too big a "split") and I think the Heads are too big (Port Volume).
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It is rated with open exhaust and a carb, so once you slap your TPI on it, it wont make anywhere near the 385hp.
The heads want more air badly, but the cam is fine even with TPI. Honestly I would buy the same engine with a bigger cam and then put a MR on that, but its fine to just slap a MR on this and then have the chip redone.
And you will need a custom chip done either way, so budget it.
The heads want more air badly, but the cam is fine even with TPI. Honestly I would buy the same engine with a bigger cam and then put a MR on that, but its fine to just slap a MR on this and then have the chip redone.
And you will need a custom chip done either way, so budget it.