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Old 10-13-2010, 12:59 AM   #1
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Lt1 heads and intake on l98

I'm buyng a A lt1 intake with injectors, trottle body, and aluminum heads, I want to put all this on my 87 l98 motor, I know o need to modify the dizzy in rear what else sill I need for this swap thanks
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Old 10-13-2010, 07:48 AM   #2
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Re: Lt1 heads and intake on l98

sorry. Wrong answer.

Last edited by megtom2; 10-13-2010 at 07:52 AM.
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Old 10-13-2010, 08:23 AM   #3
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Re: Lt1 heads and intake on l98

I don't know all the specifics, but you will need to figure out how you're going to make a distributor work on the LT1 intake (been done, not sure whats involved) because the LT1 uses Optispark.

Not really sure there is a huge power advantage here - I mean, obviously some, but worth the effort for a minimal gain... i dunno.
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Old 01-18-2011, 01:30 PM   #4
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Re: Lt1 heads and intake on l98

Aren't there some differences in the water passages?
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Old 01-18-2011, 04:24 PM   #5
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Re: Lt1 heads and intake on l98

you have to drill the hole and add a 5* distributer spacer... its angled at 5* towards the driver side..

the heads, there have been a few posts and pictures, but you need to modify the heads a great deal because they use reverse cooling, you need to weld up part of the coolant passage on the bottom, and drill a large hole in one side and add a tube either epoxy'd or welded in... i forgot the name of the guy who did it, but he had pictures of the process and how.. not something a rookie should under take at all

BUT.. if you want to take the short cut... there is a guy selling the intake and heads already converted in the "engine and performance" for sale section board.. he wants $1,000 for intake and heads... not a bad deal if you take into consideration how much work is involved
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Old 01-18-2011, 04:25 PM   #6
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Re: Lt1 heads and intake on l98

Quote:
Originally Posted by Dante93GTZ View Post
you will need to figure out how you're going to make a distributor work on the LT1 intake (been done, not sure whats involved) because the LT1 uses Optispark.
Drill hole in LT1 intake , run reg dist
Opti not used because he is using '87 electronics

Click the image to open in full size.
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Old 01-18-2011, 04:28 PM   #7
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Re: Lt1 heads and intake on l98

Quote:
Originally Posted by vetteoz View Post
Drill hole in LT1 intake , run reg dist
Opti not used because he is using '87 electronics
yes but you need to make a distributer spacer and put it on a 5* angle, get this part wrong and you will chew up the dist. gear or cam.. or both

here is the listing for the already converted intake and heads i was talking about

http://www.thirdgen.org/techboard/en...orted-lt1.html (Converted Race Ported LT1 heads & intake for L98 or SBC)
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Old 01-18-2011, 04:32 PM   #8
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Re: Lt1 heads and intake on l98

Quote:
Originally Posted by KiLLJ0Y View Post
you need to modify the heads a great deal. i forgot the name of the guy who did it, but he had pictures of the process and how.. not something a rookie should under take at all


Pics no longer up but swap details still there
http://www.thirdgen.org/techboard/tp...eads-gen1.html (Completed: LT1 Heads on a GEN1)
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Old 01-18-2011, 05:09 PM   #9
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Re: Lt1 heads and intake on l98

http://www.thirdgen.org/techboard/fa...n-project.html (LT1 Head conversion project. (Info, Part numbers and Prices))

Currently on the back burner at the moment.
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Old 01-18-2011, 05:09 PM
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