Hey peoples I'm still learning about my good old LT1. I've been looking around but i can't find the answer to this question. Is there anywhere, on the internet, where I can find out whether I have a two or four bolt engine. I have a 1996 LT1 with the black OEM racing stripes, if that helps
Thanks for your help

 

Factory Camero's were all two bolt.
Corvette and factory replacement blocks were 4 bolt.

 

Ok cool I saw something some weeks ago saying in 96 and 97 GM may have put 4 bolts in some of the camaros too. O well

 

So who wants to start the argument about wheather a 4 bolt block is stronger then a 2 bolt block with 4 bolt splayed caps?

 

I'll just use the factory 4 bolt and not argue. I just never had one fail in the main brg area.
I know 8-1000HP may not be enough to do it but I don't build any bigger SBC's than that.

 

I dont know think all CAMAROS came with 2 bolts. If your car had to have the engine replaced under warranty it might have had a 4 bolt put into it. Also in 1997 some CAMAROS came with 4 bolts from the factory.

 

That's what I said the Corvette and FACTORY REPLACEMENT BLOCKS.

This engine was used in:

* Aluminum heads and 4-bolt mains
o Chevrolet Corvette C4
* Aluminum heads and 2-bolt mains
o 1993-1997 Chevrolet Camaro Z28/Pontiac Firebird Formula and Trans Am variants
* Iron heads and 2-bolt mains, 4.3 (L99) and 5.7 liter options
o 1994-1996 Buick Roadmaster
o 1994-1996 Cadillac Fleetwood
o 1994-1996 Chevrolet Caprice
o 1994-1996 Chevrolet Caprice Police Package
o 1994-1996 Chevrolet Impala SS

 

didnt the lt4 camaros come with the 4 bolt main. i thought i read somewhere that they are rare but do exist

 

i blown my engine and destroy my block it was a 4 bolt and was in a 1994 camaro, and was the original. now i'm 2 bolt since i couldn't found a 4 bolt in a yunk yard.

 

 

Yeah, I'll second the with another . Anyways, for 99% of us the 2 bolt block will be perfectly fine. FWIW, the Malibu I used to race ran for many seasons with a 2 bolt block, spinning 7500 RPM and cranking out 525 HP. It ran basement 11's @ 120ish. No block filler or anything. I really don't understand all the bench-racing hype about 4 bolt blocks. As stated before, if you're that concerned about it then convert a 2 bolt to splayed caps and be done with it.

 

Do you purchase the car straight from the dealership?

 

Once that thing goes boom you'll understand.

Bret

 

LT4's came in Corvette's that's why the 4 bolt mains.

 

It was a replacement block or engine.
If ya didn't buy it new(could have been replaced before hitting the showroom) and cannot vouch for where or when or how it became a 4 bolt then it didn't come from the factory that way.