Gen 1 sbc head conversion

[Butch1]

Is it possibe to put gen 1 heads on an lt1?
If so,what do i have to do?

I did a serch and could not find the answer

Thanks

[Grr]

have to re-drill the intake bolt pattern, plug the oil drain holes and re-drill them inboard a little, and drill the rear of the heads for the coolant tubes.

[Divine02]

Seriously? Is that all? I didn't figure it was possible with the reverse flow cooling.

[96lt1m6]

http://www.advancedinduction.com/AiHome.htm

[Grr]

yeah its not that tough. I have a set of converted brodix heads sitting on the bench that are going on and it didnt take much

[jakesz28]

Yes it can be done heres some pics of mine.

http://i97.photobucket.com/albums/l211/jakesz28/21608012.jpg

http://i97.photobucket.com/albums/l211/jakesz28/21608010.jpg

http://i97.photobucket.com/albums/l211/jakesz28/21608009.jpg

http://i97.photobucket.com/albums/l211/jakesz28/21608011.jpg

[KLaBZ28]

WOW WHAT?!?!?! I'm definatelt bolting my step dads LT-1 high compression heads on my car. I'll need an LT4 knock sensor though...

[95LT1Z28]

Is there any advantage to using gen 1 heads over an lt1 head?

[Grr]

lots of advantages
1. pick any size you want, your not limited to 195s (standard size, yes there are bigger but $$$$)
2. CHEAP, go on racingjunk or ebay and you can get some badass aftermarket heads for nothing
3. ability to switch to a single plane intake someday by just bolting it on there
4. did i mention they are cheap?

[Divine02]

Thats awesome. The bad thing is that I just sold a set of Dart prototype heads. They were the last set of Gen 1 heads I had.

[Divine02]

Now I know the coolant passages have to be smaller right with the Gen 1 heads? So does that hurt streetability? Or are you going to just want to use this at the strip?

[Butch1]

Could someone get into a little more detail about what to do to the heads to make them work.I really want to do this.I have a set ot protopline 235's that i want to use.

[Butch1]

Yes it can be done heres some pics of mine.

http://i97.photobucket.com/albums/l211/jakesz28/21608012.jpg

http://i97.photobucket.com/albums/l211/jakesz28/21608010.jpg

http://i97.photobucket.com/albums/l211/jakesz28/21608009.jpg

http://i97.photobucket.com/albums/l211/jakesz28/21608011.jpg
I see that you blocked off the water passages on the intake side.What did you do to the other water passages.Did you do it yourself?
I'll be honest..i've searching on the internet for many hours and everyone says how easy it is but no one can tell me exactly what to do.I need to be able to tell my machinist what to do.You help is appreciated.

[jakesz28]

I did not do it myself I got the heads allready converted for $500. They needed a little work but the hard stuff was already done.

First off if your going to put a good sbc on a LT1 I would run a sbc intake and not redrill the intake bolt holes. The water crossover passages did not need to be welded up in the back of the head. You can use the thread holes in most sbc intakes to use to remove the steam and plumb it to the radiator. In place of our current water crossover tube. which would eliminate drilling the back of the head.

http://i304.photobucket.com/albums/nn190/94nitrousedLT1/51808003.jpg

The deck of the head was welded up some and the oil drain back holes were welded closed and remachined. A valve guide was pressed in the new hole to keep the water out. Were the oil drain needs to be it goes thru the water passages.

[NitrousJunkie]

I've been looking into this for a while, and possibly switching over to carb and most importantly to be able to use a regular type distributor....because I think my opti is going:no:

[jakesz28]

I've been looking into this for a while, and possibly switching over to carb and most importantly to be able to use a regular type distributor....because I think my opti is going:no:


If your not building a serious race motor I would just buy the MSD opti. A carb isn't the most freindly street set up. A low profile distributer will fit under a cowl but my car has been under the knife and is basically a track car. Last year if I had the money I would have still been injected but I put too much money in this thing as it is. I would like to go back to fuel injection but at this time it's hard to justify the cost without a serious drop in et.

[Twisted Z]

Minbe are out being done right now ;) A little set of -18s :D

[Grr]

Theres your answer. I would pull the heads and bring one of each over so the guy has something to compare. Otherwise send them off to someone that knows how to do it and not worry about it. I agree on just using a SBC intake as well, im glad when the time comes i can just bolt one on there.

[Divine02]

By the time you buy heads, have them machined, buy an intake, and do the plumbing you could buy 3 or 4 optis. I'd just buy and new opti and save a lot of money in the long run. But thats just my opinion.

[Grr]

when you get to the level of looking to a huge SBC head to make more power, the opti isnt going to handle it. At that point your also going to be looking at a standalone ECM and switching to a single plane. If your doing those things, it is much easier and cheaper to go with a SBC head and intake with a distributor. The only head of that size is the AFRs, $$$$. You can get a 220+cc SBC head setup for just over half the cost, and not have to do an intake conversion.
Also buying a couple optis and saving money in the long run is an oxymoron. Ever seen an ignition take a shit while your spraying a 200+ shot of nitrous?? You are gonna need a hell of alot more than an opti after that
Thats not my opinion, its mostly a fact