TravWS6

how much horse power would i expect from porting and polishing my heads? or would i be better off gettting aftermarker heads?

DenzSS

There are no aftermarket heads for the LS1. All of the heads available are either CNC or hand ported.

You will find the best results by going with one of the big name companies offering heads. MTI, GTP, ARE, etc.

Less known brands are EMT, TEA, and a few others. These heads produce very good results as well.

TravWS6

WEll yes i new about the MTI's and others.. i would buy a pair... but they arnt cheap at all!! so theres gota be a way i can port and polish my stock heads and get some hp right? or is there no gain or a drop in power if i port my heads?? port and polish don't cost nothin compared to new heads..

AlonzoVersion 1.0

Honestly I would just send them to a machine shop and get them done right for a couple hundred bucks.TEA does good work and they are a sponsor.

DenzSS

I'm experimenting with a local head porter for my heads. We'll see how that turns out.

DenzSS

This guy is a big sponsor for Drag Racing in our area. He does a lot of the 5-6 sec car heads. He has done LT1 heads bit never LS1 heads. The good news is, he's ported just about everything. Supra, 2.3L Ford, 2 and 4 valve 4.6 heads, you name it. All with very good results. It may take him a bit, but I'm pretty confident that he'll do a good job. It may not equal the performance of GTP or MTI heads or it may. Who knows. Regardless, it is worth the experiment to save well over $1000.

TravWS6

Ya let me no how it goes DenzSS,
i was thinkin of doing the same.. lotsa perforamce shops around my area. Thanx

TravWS6

ya the savings are the main point.. but ya keep me updated.. i no alota shops out here just need to make sure the porting is worth it. thanx