are the lt4 heads on a 97 ta worth porting or should my buddy get diff heads with a new 383 and vortech w 10lb boost whats the best way to go for power?

 

Unless he bought LT4 heads and intake and put them on his car, he has regular LT1 heads on his 97.

If they are actually LT4 heads, they are very good for porting.

If they are LT1 heads, he may want to buy some trickflows or something.

 

Anything other then stock, I like my TFS heads

 

actually a 97 could have an LT4... rare but they produced several hundred LT4 fbodies in 97

depending on his goals I would say sticking with the LT4 heads.

 

That would only be the case if it was a Pontiac Firehawk. They were the only ones produced with the LT4. Even the C4 Corvettes only had the LT4 option with the manuel transmission, the autos all came with the LT1.

 

he bought the car from a friend who was the second owner the original owner put the lt4 package on and added a vortech plus all kinds of suspension parts. the second owner paid 22k for the car in 2000 my buddy bought the car a few months ago after it sat in storage for 4 years ( the guy was in the navy and just got out). the car had an overheating problem never letit get hot. he bought the car cheap and we fixed the fan wiring and no more overheating. but the car is high milage with alot of blow by. so like everyone he wants more pwer.....sorry so long and thanks.

 

There were 30 LT4 Firebirds, 110 LT4 Camaros, and 6,359 LT4 Corvettes built.

 

Sorry I was unaware of any LT4 Camaro's. Were they special order option cars? I guess I can see some of those being pace cars and such.

 

his figure on the lt4 camaros is correct. they are extremely hard to find and ive only seen one in person. if i had either the camaro or the firebird i would hang on to that

 

Stock LT-1 heads can make a lot of power. If they are confirmed to be lt-4 heads, all the better. Send them out to a quality head porter (I prefer Advanced Induction) and go from there.

They did a set of their 200cc CNC LT1 heads with a small turbo cam on a 355. It has a pt-88 turbo on it and makes over 1,000 RWHP.

You can check the AI results page:
http://www.advancedinduction.com/AiPerfLT1.html

or: http://www.forcedinductions.com/
under the 'top gun customer list'.

You can do sweet **** with the stuf you have, so concentrate your funds on other aspects of the project. I bet you can get a nice set of Mahle pistons and assorted gaskets for the price of a new bare head casting.

 

I believe some of the 30th Anniv. cars were LT4 Equipped.

 

how to know for sure what hes got/ neither of us have had an ltx? is it possible his formula ta was orinal lt4?? if i read correct the answer is no.

 

The only way to know for sure is to pull the valve covers off and find the P/N on the head. Should take 10 min.

 

i say go with a new set of AFR heads...the new eliminator heads look VERY promising

 

Too bad they won't even be in production until august 07. I've already called AFR on this...

 

i didn't figure they'd be ready for sale for a while....either way, the version that's still out is an AWESOME head....i've had some very good luck with the 195cc competiion port heads...out of the box i've seen a handful of cars (including mine) make over 400rwhp with a decent cam and some good tuning.

either way, my vote stays with AFR

 

Total Engine Air flow has a set of Trick Flow castings that they CNC'd to 200 cc int runners. They have very good flow number's. If you go to their web site look up the GM LT1 stage 3 heads.

 

Yep, you can bet if they were available now, I'd definitely have a set!

 

i remember reading the trickflows flow better than afrs. i think that was in a gmhtp mag.

 

I like the Trick Flow heads.I have some on the way now I am thinking of having Lloyd Elliott port them with my stock Lt1 intake