LT4 heads
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Melting Slicks
Joined: Nov 2002
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From: 1993 Quasar Blue 'vert Scottsdale AZ
LT4 heads
I'm getting ready to do a top end package. Probably will go with a LT4 Hotcam kit or something similar (have to pass emissions). Now what heads would you guys recommend. I thought about having the stock ones ported, but the local Corvette shop highly recommends that I go with new LT4 heads. Would this be a better choice? A much more expensive choice? EM would be doing the installation, I'm a mechanical idiot.
Race Director
Joined: Jan 2002
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From: O'Fallon Missouri
Getting your LT1 heads ported will outflow stock LT4 heads, and will cost about the same price as buying the new LT4's. But, if you are talking about porting the LT4 heads, that is a different story.
Le Mans Master
Joined: Jul 2000
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From: OKC OK
Stay w/ the LT1s. If you want more hp, get them ported.
LT4s in stock form don't justify the $ for the hp. LT4s also require the LT4 intake. Ported LT4s really aren't needed until you have a large cube and/or high rpm (big cam) motor.
LT4s in stock form don't justify the $ for the hp. LT4s also require the LT4 intake. Ported LT4s really aren't needed until you have a large cube and/or high rpm (big cam) motor.
Large Impressive Member
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From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Originally Posted by LT4POWR
Stay w/ the LT1s. If you want more hp, get them ported.
LT4s in stock form don't justify the $ for the hp. LT4s also require the LT4 intake. Ported LT4s really aren't needed until you have a large cube and/or high rpm (big cam) motor.
LT4s in stock form don't justify the $ for the hp. LT4s also require the LT4 intake. Ported LT4s really aren't needed until you have a large cube and/or high rpm (big cam) motor.
Yeah, bang for the buck the Stage III LT1 heads will do the job for most. Mine far outflow stock LT4 heads. 370 RWHP with Hotcam and stock bore & stroke, est. 425 or so at the crank. Hoping the stroker block I'm building will get me to at least 400 RWHP. We'll see.
Race Director
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From: O'Fallon Missouri
Originally Posted by Corvette Kid NC
Yeah, bang for the buck the Stage III LT1 heads will do the job for most. Mine far outflow stock LT4 heads. 370 RWHP with Hotcam and stock bore & stroke, est. 425 or so at the crank.370 rwhp is really impressive from a Hot Cam in an A4.
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From: Manassas VA
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St. Jude Donor '14
SDPC2000.COM sells a CNC LT4 top end kit. LPE CNCs the heads for SDPC. comes with RR, Cam, intake, heads, everything you need... Price is 2900...
http://www.sdpc2000.com/catalog/3473...-CNC-Heads.htm
http://www.sdpc2000.com/catalog/3473...-CNC-Heads.htm
Last edited by Bluewasp; Jul 19, 2005 at 07:31 PM.
Large Impressive Member
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From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Originally Posted by STL94LT1
Wow, seems like I just read that you dynoed 335 rwhp. Did the new headers make that big of a difference?
370 rwhp is really impressive from a Hot Cam in an A4.
370 rwhp is really impressive from a Hot Cam in an A4.
BTW, I give Bob most of the credit for the power level. I know how to assemble an engine but the heads are where a lot of the magic is worked.
Last edited by Corvette Kid; Jul 19, 2005 at 07:47 PM.
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From: St. Peters MO Sometimes you have to prove yourself by doing alot of killing or alot of dying...
Originally Posted by STL94LT1
Getting your LT1 heads ported will outflow stock LT4 heads, and will cost about the same price as buying the new LT4's. But, if you are talking about porting the LT4 heads, that is a different story.