LTxDave

I found a low mile 96 LT1 for sale, are there any differences between the LT1 Camaro and Corvette engines? I know accessories and so forth are different, so my question is really related to cam specs, head specs, block, etc Thanks!

SPEED750

Vettes have a 4 bolt main block.

ToyC4

The cam is different too. If you're planning on tearing it apart and rebuilding it then you won't be at any disadvantage. Splay the main bolts and it will be stronger than a 4 bolt main, but you don't really need to do this unless you're planning on getting pretty serious with the motor.

VenkmanP

Never heard that before.

I think the balancer is different.

VenkmanP

Same camshaft P/N 10224241

RainJ

brakes are much smaller on the Camaro-
only has a single exhaust on the camaro

those were the only two obvious things I saw between my 96 on a lift and a camaro on a lift in the next bay

(i was trying not to be nosey)

Rain

VenkmanP

Uh. LT1 _engine_ differences.

REDC4CORVETTE

One is an f body and the other is a Y body
Just the main caps but if it is a Z28 it may have 4 bolt main.
I have a pontiac LT1 and splade the main caps about $300.00 now it should at least take 600 hp with the cola crank and H-beam eagle rods.

Check the year ,the 95 opti and newer has a big hole for the dist and a crank sensor in the timing chain cover.
Also see if it has iron or alum heads.

jp2002ls1

[QUOTE=REDC4CORVETTE]One is an f body and the other is a Y body
Just the main caps but if it is a Z28 it may have 4 bolt main.
QUOTE]

Only the Z28 and SS camaros had the LT1, some of the LT1 F-bodies had 2-bolt mains and some had 4-bolt mains, you wouldn't know unless you took off the oil pan and looked. The Impala SS and some caprices had LT1's but they all had iron heads, all F-bodies (camaros and trans ams) had aluminum heads. The opti's differed by year. Realistically the engines are the same, the corvettes claimed more power due to their intakes and exhaust. Some of the smaller exterior items like the balancer and valve covers and such are different but inside the motors are identical unless you get a F-body motor with 2-bolt mains. You could even get a LT4 from a F-body but those are rare. Good luck.

VenkmanP

All Fbody LT1s are 2-bolt. The LT4 was 4-bolt in F-body.

ToyC4

When was an LT4 put in an F-body? I thought the only cars with LT4 were GS and other 96 corvettes?

luvmy92

I believe it was in 97 Y-Body's and 97 Impala's too.

Mike

kwik_ta

I have read that there are a few LT4 f bodies in 97... maybe the remaining that did not get used in the vette line? The LT1 in the F body was only rated at 275hp - 305hp if you opted for the ram air kit. I was under the impression that the Corvette heads flow better and have a better valve train. The 2 bolt 4 bolt argument is correct. A majority of the f bodies have 2 bolt mains. I have yet to see one with a 4 bolt.

FD2BLK

Oil pan (will work fine on the corvette, it's what I have)
Oil Filter adapter (off set on the corvette)
Ballancer/pulley
4 bolt -vs- 2 bolt mains

gbody5

I think it was the Camaro SS, not sure what year but I think it was when they had the exhaust come out one side in the rear, and only with a manual trans could you get the LT4, few indeed and very fast. A young friend of a friend had one, black, and it would absolutely fly, he ended up wrecking it.

CrvtBB

The LT4 SS Camaro was a special modification available from SLP (they do the "factory" work on the SS). They are very rare because they were ridiculously expensive compared to a normal LT1 SS. It was not a factory installed option per se.

VenkmanP

It's a GM engine in a GM car sold through a GM dealer. How is that not a factory option? It's more GM than a ZR1 or a B2K.

http://www.carcraft.com/roadtests/908/

You guys need to spend some time on the F-body boards.

There's a lot of good info on modding LT1s to be found there.

VenkmanP

The difference is all intake & exhaust. Same heads, same valvetrain.

They had a 305HP LT1 in the F-Body? I doubt GM would let them have more HP than the Vette.

TwoFast4Lv

Most of it has been covered. The LT4 was installed at the same plant that did the "SS" converions. They were install in aprox. 250 F-body's. There is a site with the full break down.

Things that are known about them(and little is truely known).

They use left over production Vette engines. the oil pan,knock sensors, front balancer and fuel rails were replaced for the swap. Injectors have always been in question. The reason is we all know the LT4 had larger injectors but one of the things that was NOT changed was much of the PCM programming. I have pulled the programming out of one and there were no noticable changes save for the RPM limit was raised. SLP touted that all LT4 cars would get extrude honed Manifolds but in fact very few made it on the cars due to cost and a delay in getting them all done.

Those are most of the things I can remember right now. I can tell you I watched one pull off a little over 305RWHP at a dyno day here. The only mod was to a GMPP CAI and some tuning

silver & red CE

Last Impala was MY96. No Impala had an sort of factory LT4 program like the 97 LT4 F-bodies.

The Impala SS/Caprice/Roadmaster/Fleetwood LT1 was exactly the same as the f-body LT1s except:

Iron heads (same valves, different springs and keepers)
Different cam (less lift and duration)
Different exhaust manifolds
Different acc brackets (ac/PS/Alternator)

All other pieces have the same part numbers