Im eventually going to get some heads, and these are the two sets im lookin at.
the trickflow caught my eye first because the combustion chamber would help reduce my CR, but ill end up getting the CR i want with the piston when i do my rebuild.....

https://www.patriot-performance.com/...&cat=91&page=1

http://www.summitracing.com/parts/TFS-30400010/

which set do you guys think would yield more HP?

or....third option.....go with LE2s???

mods are in sig.

thanks,
Jeremy

 

I have read some really bad stuff about patriot performance and I dont know anybody that would run them. There is reason they are cheap. I have the trickflows, they are a decent head as cast, not as good as stock ported, but they got room to make some good power ported

 

so maybe the LE2.....

 

I think that would be your best bet.

 

Patriot heads are complete crap.

Rich

 

Trick Flow has a new 21 degree head coming out in the next few weeks. Supposed to flow like ported, 260 intake, 190 exhast I think with 54cc bowls. They also have room for additional port work so everyone is hoping to get over 320 out of them. Price is reasonable at $1495 Summit of course. They are in the new catalog but not on the website yet. That's what I would get. Makes more sense then sinking that much into ported stockers.

Hal

 

buy LE2's, next would be the trickflows.

Or just go le3, I see no need in spending the money for aftermarket castings on a FI motor, especially when you can almost get 290's out of stock castings.

What kind of stick will you be running? I dont see you keeping that hotcam??

 

Didn't notice he was FI. Big thing there is to open the bowl up so you can hold more charge. The old TF heads had a 64 cc bowl. Can stock bowls get that big?

Hal

 

well i initially considered the trick flows because it had the larger combustion chamber and i thought id get the heads long before i rebuilt my motor. so that would be a quick way to drop the CR so i could be a little safer with the boost.....

if the new trickflows are 54cc, that would be the opposite of what im looking to do....i wonder if they are going to offer a similar head with a large combustion chamber. i doubt it since the head in my original post is meant for FI, stroked or juiced motors....

 

GM High-Tech Performance tests LT1 heads in the August 2009 issue:

-AFR 195cc CNC Street
-Dart PRO1 200cc
-Edelbrock RPM Xtreme 195cc CNC
-Golen CNC 185cc
-TEA/Trick Flow 200cc CNC

Always pays to be skeptical of magazine test data, particularly when the dyno testing was done at one of the participants' shop (Golen)..... but its interesting reading. As expected, Edelbrock was at the bottom of the HP and torque production. AFR comes out on top.

But... its a magazine test.

 

oh, and as far as the cam goes....ill probably stick with it because im in california and it passes smog. i guess i could go with a LE cam like the 218/224 .544/.544 111 LSA, or their "biggest emissions cam" 223/230 .565/.565 112 LSA. also, ive actually heard that the hotcam is a decent blower cam even though that's not what it was made for. dunno if its true or not...


would there be any reason that the LE3 heads would be "too much" for my cam? the LE3s require large valve reliefs on the pistons right? so they probably wouldnt even work on my stock bottom end. but my lift is pretty low too...so maybe.

 

Yes they are only 54 cc and made for NA. Like I mentioned, I did not notice you were FI or else I would not have suggested them. I doubt they are going to redo their current 64 cc head.

Hal

 

Trickflows hands down. When you are ready to step it up some more, send them to a reputable porter like AI or LE.

 

The original TrickFlow LT1 versions had bigger chambers, something like 64 ccs, which hurt compression. They were designed with charging in mind. The new ones have much smaller chambers comparable in size to the stock heads.

For my son's car, I'm going with Dart Pro1's with 58 cc chambers and a thinner head gasket to get the CR back. The Darts' were $1,350 complete, including shipping from JEGS.

Jake

West Point ROCKS!

 

alright, i dont retain numbers very long, and i know that this has been discussed a million times on here.....BUT if you are using a 58cc head, that is the same as stock, so you wont need to get anything back with a thinner gasket.

i believe the lt4 head is 54 or 54.4cc and ups the cr to around 11

as mentioned above, the new trickflow head will raise compression.