new engine possibility 94 LT1? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

kristoferlarson · 01-25-2009, 10:51 AM

i was seraching the classifieds the other day and came across a 94 LT1 out off a buick roadmaster Engine is complete with ecm, wiring harness, vats module, starter, altenator, exhaust manifolds i was goin to get an engine built but am thinking against it and the price is right for this LT1 but i don't have alot of knowledge on the LT1 is everything there i would need to transplant it in?

**youngrodder** · 01-25-2009, 11:21 AM

Quote:

Originally Posted by kristoferlarson

i was seraching the classifieds the other day and came across a 94 LT1 out off a buick roadmaster Engine is complete with ecm, wiring harness, vats module, starter, altenator, exhaust manifolds i was goin to get an engine built but am thinking against it and the price is right for this LT1 but i don't have alot of knowledge on the LT1 is everything there i would need to transplant it in?

I would day that the roadmaster is one of the less sought after LT1 motors. It has cast iron heads and I believe a HP output of around 265. I went with a 95 Vetter motor. These motors had Aluminum heads and a HP output of 300.

Look in the engine section of this site. Someone just last week asked a similar question. This was my first attempt at a EFI swap and all I can say is with the right amount of research it is not all that bad.

Good luck
Marc

kristoferlarson · 01-25-2009, 11:29 AM

yeah thats what ive been hearing about the road master engine, i was opposed to an efi setup at firts cause i wanted the older carb setup cause it is an older truck but now im not so closed minded i guess its what im goin to do with the engine and what i want outta my truck, i'll make a post in the engine section thanks!

STOCKISH · 01-25-2009, 03:07 PM

The iron heads on the Roadmaster and Impala SS outflow the factory aluminum heads by a good bit. Cam swap, exhaust 52mm throttle body and a tune and you'll be in business.

70clone · 01-25-2009, 11:42 PM

just be sure that it is a lt1 350 and not the 4.3 v8 they look identical same lt1 intake and everything the only way you can tell a differenc is the block will say 5.7 right behind dr cylinder head. To all of you who are about to say a 4.3 is a v6 do your research the caprices and roadmasters both had a 4.3 v8 option, i made the mistake of getting one thinking it was an lt1. Remember there is no physical difference other that the 5.7 being cast in the block. my 4.3 had alot of numbers like an old school casting # just my 2 cents

Elephanthead · 01-26-2009, 10:57 AM

If the vin has a P it is a 350. The iron heads are fine. Your compression ratio is a little lower, but the torque will be monster. You can easily get 400HP out of this engine with a rebuild, or run it like it is for 200K miles. Gen II small blocks were built right, after 30 years gm got pretty good at the SBC.

01-25-2009, 10:51 AM	#1
kristoferlarson Registered User Join Date: Aug 2008 Location: onanole MB, Canada Posts: 97	new engine possibility 94 LT1? i was seraching the classifieds the other day and came across a 94 LT1 out off a buick roadmaster Engine is complete with ecm, wiring harness, vats module, starter, altenator, exhaust manifolds i was goin to get an engine built but am thinking against it and the price is right for this LT1 but i don't have alot of knowledge on the LT1 is everything there i would need to transplant it in?

01-25-2009, 11:29 AM	#3
kristoferlarson Registered User Join Date: Aug 2008 Location: onanole MB, Canada Posts: 97	Re: new engine possibility 94 LT1? yeah thats what ive been hearing about the road master engine, i was opposed to an efi setup at firts cause i wanted the older carb setup cause it is an older truck but now im not so closed minded i guess its what im goin to do with the engine and what i want outta my truck, i'll make a post in the engine section thanks!

01-25-2009, 03:07 PM	#4
STOCKISH Formerly- 1972SuperCheyenne Join Date: Oct 2008 Location: Wake Forest NC Posts: 5,782	Re: new engine possibility 94 LT1? The iron heads on the Roadmaster and Impala SS outflow the factory aluminum heads by a good bit. Cam swap, exhaust 52mm throttle body and a tune and you'll be in business. __________________ --Josh My Build Thread:http://67-72chevytrucks.com/vboard/s...d.php?t=799218 A good crossthread is better than Loctite any day. Life is not about what you have, but who you have to share it with.

01-25-2009, 11:42 PM	#5
70clone Registered User Join Date: Oct 2006 Location: JACKSONVILLE FL Posts: 200	Re: new engine possibility 94 LT1? just be sure that it is a lt1 350 and not the 4.3 v8 they look identical same lt1 intake and everything the only way you can tell a differenc is the block will say 5.7 right behind dr cylinder head. To all of you who are about to say a 4.3 is a v6 do your research the caprices and roadmasters both had a 4.3 v8 option, i made the mistake of getting one thinking it was an lt1. Remember there is no physical difference other that the 5.7 being cast in the block. my 4.3 had alot of numbers like an old school casting # just my 2 cents Last edited by 70clone; 01-25-2009 at 11:43 PM.

01-26-2009, 10:57 AM	#6
Elephanthead Registered User Join Date: Nov 2008 Location: Carmel, IN Posts: 187	Re: new engine possibility 94 LT1? If the vin has a P it is a 350. The iron heads are fine. Your compression ratio is a little lower, but the torque will be monster. You can easily get 400HP out of this engine with a rebuild, or run it like it is for 200K miles. Gen II small blocks were built right, after 30 years gm got pretty good at the SBC.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.