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11-12-2007, 07:14 PM
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#1
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Join Date: Jul 2007
Posts: 12
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Lt1 and standard heads
Can someone tell me the difference between a LT1 head and a standard head. I have a pair of TFS heads off an 86 z28 and I'm not sure what they are, they are center bolt valve cover, and they have the center intake bolt angle difference. Any help would be great.
thanks,
-Tom
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11-12-2007, 07:39 PM
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#2
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Resident Camera Guy
Join Date: Aug 2004
Location: North Jersey
Posts: 10,971
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The main difference is the LT1's use Reverse flow cooling, they have water jackets in the cylinder heads where anti-freeze flows through unlike a standard SBC head. The two are not interchangeable.
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11-14-2007, 06:14 AM
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#3
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Join Date: Dec 2004
Location: Browns Mills NJ/ Rotondo West FL
Posts: 3,054
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Quote:
Originally Posted by ar0ck
The main difference is the LT1's use Reverse flow cooling, they have water jackets in the cylinder heads where anti-freeze flows through unlike a standard SBC head. The two are not interchangeable.
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Yeap thats it right there
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11-14-2007, 05:37 PM
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#4
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Co-Founder / Site Admin
Join Date: Jul 2004
Location: Ewing, NJ
Posts: 22,473
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Quote:
Originally Posted by ar0ck
The main difference is the LT1's use Reverse flow cooling, they have water jackets in the cylinder heads where anti-freeze flows through unlike a standard SBC head. The two are not interchangeable.
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Gen I small block chevys have water jackets in the heads as well.....just pointing that out so others don't think there is no cooling in a standard sbc head....
Quote:
Originally Posted by TBART1970
Can someone tell me the difference between a LT1 head and a standard head. I have a pair of TFS heads off an 86 z28 and I'm not sure what they are, they are center bolt valve cover, and they have the center intake bolt angle difference. Any help would be great.
thanks,
-Tom
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Look at the casting number on the heads and post it up here.....we should be able to get some info on them for you.
- Justin
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1999 Camry - Beigemobile DD
2002 Suburban - Wife's DD
2004 Grand Cherokee - Not running / Project / Selling?
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11-14-2007, 08:24 PM
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#5
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11 second club / Moderator
Join Date: Aug 2004
Location: West Berlin, NJ
Posts: 7,148
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I think there are only 2 types of Fbody Alum. LT1 heads. Not positive though
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2001 Trans Am WS6 •SLP Loudmouth II •UMI Suspension •12.857 @ 109.57
1996 Trans Am WS6 •Pacesetter Longtubes •Strange 12 Bolt •Spohn Suspension •11.152 @ 123.85
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