i have a 93 lt1 with 97 vette heads an a carb setup on it will have long tube headers for it soon ive got a 539/558 cam im thinking bout putting in it or ive got the 525/525 cam to wich would be a better cam to run on street/strip an make more power also have 1.5 roller rockers for it to should i go to 1.6? any help would greatly appreciated

 

damn 97 LT1 vette heads!! dawg, your makin like 450hp right now. I would just keep it as is.

 

ok im looking to get round 500hp out of tha motor do i need to find a stock vette cam or stick with tha original 93 cam

 

i would stick with the 93 cam. its very aggresive unlike the 94-97 cams. It makes like 45hp more. You can also go with a LS1 driveshaft. its lighter and will give you another 30hp. The stock one is steel

 

im putting it in a 88 monte ss would they be the same length an what transmission would you recommened

 

i sense some serious sarcasm in these posts lol. man do i wish u got 30 hp from a DS lol.

 

ok what would you do then on it ?

 

97 vette heads would be from and LS1 thats why hes being sarcastic. lol

 

the heads came off ebay and thats wat they were listed as were 97 vette heads

 

the casting number on the heads is 10207643 and on the front of the head it has 31543 any info would be nice

 

those are run of the mill LT1 heads, however they are one of the more desirable castings for porting but stock LT1 heads none the less. That being said if you want to meet your goals you are going to need heads (ported stockers or aftermarket, or ported aftermarket) cam, rockers, headers, and any other supporting mods I don't feel like typing out

 

Call advanced induction, write a check.

 

^^ sounds good to me!

 

wich cam would you use ive got both the 525/525 and the 539/558 cam got roller rockers to but they are 1.5s should i go to the 1.6s im just trying to find out what will performe better

 

so your motor is carburetor and has LS1 heads?

are you even sure you're driving an LT1? lol

you'll need to figure out exactly what is going on with your motor before we can help you.

 

it is a 93 block with 97 heads it is a lt1 motor i took off the tb an put a carded intake on it from gmpp its going in a 88 monte carlo have not installed yet tryin to finish building the motor before i put it in the motor is originally out of a buick roadmaster

 

That casting number is unlikely to have come on an 97 LT1, it is an earlier casting number and that is a GOOD thing. As covered in 97 the Vette went LS1.

IMO if you are going to put a carb on it skip the LT1 and just use a gen 1 motor. The multiport injection is a BIG part of what sets the LT1 apart from the older stuff. If you aren't going to use it why limit your parts selection to LT1 specific stuff.

Your apparent belief that lift numbers are all that matter in a cam suggests you learned all you know about engines in the 70s. Also the common cam that has .525/.525 lift is rated with 1.6 rockers already so it is .49x with 1.5s the way most other cams are rated.

Your 500hp goal is a pipedream if you think you are going to do it with unported heads, a stock shortblock and an off the shelf cam. Even more so if you think you can do it with the GMPP carbed intake which I will guess is what you wanted to use.

Basically STOP everything right here and start over. Come up with a reasonable goal, tell us what you have and then maybe we can help you. 500hp is doable, BUT not really on halfassed thrown together parts you stumble on cheap.

Based on performance my engine is likely over the 500fwhp number, ends up costing like $3000 in heads, intake, valvetrain, gaskets hardware etc. and then the stock shortblock needs a few hundred dollars put into it to be reliable at the necessary rpms. Beyond that the car needs a LOT of work, good TC and tranny, gears, fuel system, exhaust. Adds up FAST.

 

im having a real aggresive port job done on the heads along with putting 2.02/1.60 valves in it will that help much