best heads
Originally Posted by BRETTINATOR
Just saw your movie file, Crap that car is awesome, can't wait till the 8th, installing my AFR heads and a few other goodies. My goal is mid to high 11s on motor, I've never put bottle on Peppe, not sure I ever will.
Really nice car you have. I also have a 12bolt and was wondering what offset your rear Prostars were? 6.5 or 7.5?
Really nice car you have. I also have a 12bolt and was wondering what offset your rear Prostars were? 6.5 or 7.5?
Check out the Trick Flows. They have 64cc combustion chambers. I talked to a guy at Trick Flow, and he said these heads are nearly identical to the "Kenny Dutweiler" heads, only these work on an LT1. They're around $1300 complete, and around $850 bare.
Joined: Nov 2001
Posts: 10,023
Likes: 6
From: LT1 land...the "409" of the 90s!
I am using a set of Lloyd's heads with finish work done by Dave at Flow Technic's.
My Flow numbers are only 275/207. Car ran 11.85 with 3,750Lbs through an Auto and a 12 bolt.
This was a Stock 350 short block N/A of course. CR was right at 10.6:1
My Flow numbers are only 275/207. Car ran 11.85 with 3,750Lbs through an Auto and a 12 bolt.
This was a Stock 350 short block N/A of course. CR was right at 10.6:1
On The Tree
Joined: Feb 2004
Posts: 105
Likes: 0
From: Portage, MI
Advance Induction Take a look at Advanced induction. http://www.advancedinduction.com They sell LT1 heads at great prices, and have a wide selection of heads to choose from. I think i'm going with them for my 383 LT1. Right now I have a 230/242 114, w/ stock heads, and running 12.5@113...so I can't wait to put a set of ported ones on. What do you think I will gain? I have just about every bolt on you can buy...
Originally Posted by TwoFast4Lv
I am using a set of Lloyd's heads with finish work done by Dave at Flow Technic's.
My Flow numbers are only 275/207. Car ran 11.85 with 3,750Lbs through an Auto and a 12 bolt.
This was a Stock 350 short block N/A of course. CR was right at 10.6:1
My Flow numbers are only 275/207. Car ran 11.85 with 3,750Lbs through an Auto and a 12 bolt.
This was a Stock 350 short block N/A of course. CR was right at 10.6:1
I'm hoping for 415rwhp week after next. Considering a K-member in a couple months, then it's drag springs/shocks all the way around, all I have left for chassis is a Spohn Tq Arm, done the rest already. Mine should be able to crack mid 11s I hope...with drag tires/wheels yada yada.
For "on a budget" heads..... get ahold of PORT PROS (www.portpros.com). They have the best flow numbers at a low cost. My AFR 227 LT4 bare castings ported by them now flow over 315 @ 650 lift. Ask for Harold...tell him Tony sent ya and he will discount it.
Tony
Tony
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Launching!
Joined: Mar 2004
Posts: 299
Likes: 0
From: Elwood, IL
How cares what the flow numbers and dyno numbers are. It is all about the track performance that matters. I have TEA LT1 heads and a hyd roller cam in the car. I do have flow numbers but didn't really care about them. THere are many ways to adjust a flow bench to make the numbers bigger. My car has went 10.98 @ 120. 1.442 60' and has since went 122.77mph just this past weekend. I know the car will go in the 10.80's before the year is over. Look at Steve Quinn, he is running LT1 heads and runs in the 9.70's. You don't have to spend 4K on heads to run fast. I might only have 4K in the whole motor.
Just my .02
Ken
Just my .02
Ken
I for one care about flow numbers which is vital to picking a cam selection. My old AFR 190 LT1 heads (flowed 285 @ 650) went 10.01 @ 133 mph (175 shot) and 10.82 @ 125 mph n/a. 3650 LBS and hydraulic cammed by the way. My new setup will be much faster. 
I guess it is just opinion...but flow numbers are very important!
I guess it is just opinion...but flow numbers are very important! Launching!
Joined: Mar 2004
Posts: 299
Likes: 0
From: Elwood, IL
Originally Posted by Tony Shepherd
I for one care about flow numbers which is vital to picking a cam selection......
I guess it is just opinion...but flow numbers are very important!
I guess it is just opinion...but flow numbers are very important!
Again just my .02
Ken
Originally Posted by '68LT1camaro
Check out the Trick Flows. They have 64cc combustion chambers. I talked to a guy at Trick Flow, and he said these heads are nearly identical to the "Kenny Dutweiler" heads, only these work on an LT1. They're around $1300 complete, and around $850 bare.
The manufacturer is not the best place to get comparison data, ONLY go to them for hard measurable details, otherwise you get the strict marketting department line, then even question measurable data on things easily manipulated like head flow. Things like cam specs you can trust a company on since that is 100% verifyable, head flow will change depending on MANY factors. Joined: Nov 2001
Posts: 10,023
Likes: 6
From: LT1 land...the "409" of the 90s!
I am with Tony on this one. What everyone miss's is the last thing on the sheet.....AVERAGE horse power and Torque. I do not have the best peak numbers(A4 and 12 bolt mind you) but I usually have the best average HP/TQ numbers and that is where it counts 
I follow the same rules with my heads A dyno and a flow bench are very valuable tools IF you use them correctly
BTW my car would run tens to I wanted to gut the hell out of it I prefer to drive it to work 
I follow the same rules with my heads A dyno and a flow bench are very valuable tools IF you use them correctly BTW my car would run tens to I wanted to gut the hell out of it
I prefer to drive it to work Last edited by TwoFast4Lv; Sep 28, 2004 at 10:32 PM.
Teching In
Joined: Aug 2004
Posts: 38
Likes: 0
Originally Posted by BRETTINATOR
damn I thought my car @ 3700 lbs was FAT, the 12 bolt added a chunk of weight.