North East F-Body Association

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-   -   Reg gen one heads converted over for lt1 (http://www.northeastf-bodyassn.com/showthread.php?t=2117)

Suicidal racing 12-23-2010 11:47 PM

Reg gen one heads converted over for lt1
 
Here is a pic to of one head that has been converted vs the other head that hasnt..Top head is the reg one bottom is the converted..the steam holes on the end isnt shown

http://sphotos.ak.fbcdn.net/hphotos-..._4715917_n.jpg

http://i97.photobucket.com/albums/l2...00710-1000.jpg
http://i97.photobucket.com/albums/l2...00710-1000.jpg

black heartbeat 12-24-2010 06:40 AM

interesting

Formula413 12-24-2010 08:51 PM

What is the benefit of converting SBC heads to work on an LT1? Is there a much better selection?

Suicidal racing 12-24-2010 09:43 PM

It's night an day you can buy heads that.are ment for racing vs street heads..plus you can use a lower valve angle head if you want

black heartbeat 12-25-2010 12:29 AM

can you use a single plane intake for a small block when you use the smallblock heads and not need to modify the intake as much?

ILuvPizzaTimes10 12-25-2010 12:53 PM

you fit a single plane under your hood then come talk to me..... hahah Great write up/PICTURES YAYYYY PICTURESSSSS


haha anyway. with out laying an LT1 head gasket on a SBC head i would have never know there was THAT much difference aside from the reverse cooled opening and the steam/crossover holes.

black heartbeat 12-25-2010 01:30 PM

Quote:

Originally Posted by ILuvPizzaTimes10 (Post 34849)
you fit a single plane under your hood then come talk to me..... hahah Great write up/PICTURES YAYYYY PICTURESSSSS

Aside from the hood problem does anyone know if the runners match up at the correct angle to the small block heads? because I read that you need to fab the base of the single plane pretty intensely to make the angles of the runners match up with the lt1/lt4 heads correctly and was wondering if you could get around that with the small block heads

ILuvPizzaTimes10 12-25-2010 03:03 PM

the angle isnt the issue. the intakes all have the same degree off the china wall. its the bolt pattern thats the issue. and depending on your heads wether LT1 or LT4 were the runners land based on what intake your going to use. Vortech wont come close. Classic SBC intakes fit best but will take some massaging around the ports to get em to mate up perfect with the heads. but take an LT1 top end apart and the shit doesnt match up perfect anyway.

black heartbeat 12-25-2010 03:12 PM

ahhh I seee thanks mike

Suicidal racing 12-25-2010 05:27 PM

sbc gen 1 heads and lt1 heads are all 23 degree heads stock..only changes was the reverse cooling and intake bolt pattern head wise.Thats it they are nothing special at all..

On intakes no out the box intake will match up with head runners direct..thats why port matching is done.

Also intake wise the bolt angle is different also..the bolts are more straight up vs a gen 1 which are more at a angle..

heres some pics to help get the idea.

washer angle to correct the problem..if i remember right angle is like 26 or 27 degree
http://t2.gstatic.com/images?q=tbn:A...xUUa0Qelf9vr6S

http://i884.photobucket.com/albums/a...x/DSCN0197.jpg

Bolt hole difference,As you see the corners are the same the second set in are about a 1/4 diff and you could just slot the intake.The 4 centers will need to be re drilled..some people skip putting the 4 centers in and just run the outer 4 of them..def dont do that if boosted lol.
http://t3.gstatic.com/images?q=tbn:A...I2bJb05MSEJmkw


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