should i get 5.7 vette or camaro engine i want an 89 or up in either adn also how much do oe of these engines run at a junkyard

 

Both are pretty much the same. The Vette engine will probably set you back a little more because they had aluminum heads.

 

you mines as well go with the vette engine, i have a 90 vette engine in mine...the vette engines produced a bit more HP than the camaro 5.7's, and they are lighter due to the aluminum heads...the vette engine will prolly be a couple hundred more I would imagine...mine came in the car, so i couldn't tell ya how much they are going for...

 

Also, the Vette will be a 4bolt main block.

 

Hi

I could be wrong but thought that even the Vette blocks
were 2 Bolt.
The exception was somes series truck roller block.

Later
jaykar

 

I'm pretty sure the L98 vette motors were 4bolt mains. In 85 they had iron heads, and I think it was 86 when they switched to the 113 aluminum castings. Camshaft profiles were the same as far as I know.

With the aluminum headed L98 you can port those 113's out pretty good. a 50lb weight savings over iron I think.

Also, the vette L98's had an external EGR setup, so that is something you'll need to work around.

 

The Vette L98s were a 4 bolt main, they also used the aluminum heads in the Vettes. Other than that everything is pretty much the same.

Remember, up to 89 they were Mass Air Flow and the 90s+ were speed density. Just something to think about.

 

awesome, i didn't even know i had a 4 bolt main block...learn something ever day!

 

There are no absolutes. It depended on the year Corvette. In some earlier ones they were 2 bolt mains. I have the original short block from my 87 Vette laying on the garage floor. It had aluminum heads and a 2 bolt main block/w cast crank. Remember the L98's were some of the lowest hp engines ever put in Vettes.

 

The aluminum L98 heads are actually about 35lbs lighter....each

I don't know how much lighter the entire L98 vette motor is than the f-body motor, as there were a few other differences.

- Justin

 

My original 14101083 Cast Iron L98 heads weighed 41lbs assembled. You're telling me that the 013 Aluminum heads weighed 6 lbs assembled? I think you mean 35lbs lighter TOTAL.

 

L98 lowest HP engine in a Corvette? Have you ever drove an '84 Corvette? How about a mid '70s L48? I have never drove a '53 straight 6, but I am pretty sure they make the '70 smogger engines seem mean. L98 Corvette engines are not that bad, no LT1 or LS1, but not bad.

Martin

 

My apologies for not clarifying....the weight difference listed in my previous post was between fully assembled (stock valvetrain) '87 LG4 heads and fully assembled '89 aluminum L98 heads with port matching and some other minor cleanup work.

Thanks for picking up on that....

- Justin

 

He said his cast iron heads were assembled too, which would mean that your assembled aluminum heads still only wieghed 6 pounds. Think somebody needs to check there measurements.

Martin

 

No, he clarified. What he was trying to say was that his aluminums only weighed in at about 28-29lbs. Each. Totaling 35 lbs lighter. Not being 70lbs lighter total. That would be kinda neat though... 6lb aluminum heads. Hell my AFR heads weigh low 30's assembled. (each)