Ported LS7 heads and aftermarket heads..all flow same?
#1
Ported LS7 heads and aftermarket heads..all flow same?
Hey guys
lately i noticed Ported LS7 heads, ported LSX LS7 Heads, All pro LSW heads all flow +400cfm...They r all flow same.
What is the advantage now??
lately i noticed Ported LS7 heads, ported LSX LS7 Heads, All pro LSW heads all flow +400cfm...They r all flow same.
What is the advantage now??
#3
Teching In
ls7 heads
Different chamber and port design. wet flow characteristics. The aftermarket LS7 heads, PI and All Pro, I have seen hands down put up 30 more hp than a ported stock LS7 head even when the flow numbers were close to the same.
#5
Banned
iTrader: (3)
The advantage now is the new All Pro -2 Race head. We're just finishing up an intake program that will produce 435cfm @ .800" lift. It's on a factory 12º angle and the valves share the same guide spacing as the stock LS7 heads. Valve sizes are 2.250"/1.625". It's designed for large displacement race applications. An excellent choice for classes requiring stock valve angles
Price and availability will start at the end of the month.
Richard
Price and availability will start at the end of the month.
Richard
#7
Are you saying that a well ported LS7 will never be as good as the PI and all Pro ones no matter how good they have been ported?
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#9
Is 30bhp or 30rwhp?
What kind of hp/tq u made from ported LS7 heads?
#10
The advantage now is the new All Pro -2 Race head. We're just finishing up an intake program that will produce 435cfm @ .800" lift. It's on a factory 12º angle and the valves share the same guide spacing as the stock LS7 heads. Valve sizes are 2.250"/1.625". It's designed for large displacement race applications. An excellent choice for classes requiring stock valve angles
Price and availability will start at the end of the month.
Richard
Price and availability will start at the end of the month.
Richard
What can i use from my heads in the new all pro heads? What is the estimate total cost would be ?
#11
I have that cam in my 440, it not bad at all. If your plans are to go with these new heads, then you might be better off getting a custom one made for your application. Or better yet, go with Solid Roller cam.
#12
#13
I am sure the striker would be a good choice, but with such high tech heads, i would be more tempted to do a solid roller for the extra rpm stability and power. Another option would be the new LSR profiles by CCams.
Btw, whats your ultimate goal?
Btw, whats your ultimate goal?
#14
9 Second Club
iTrader: (33)
The Striker or the LSR grinds would be both excellent choices. I've had both in my 441 and its hard to choose which one i like better. Each has there pros and cons but the Striker will make your teeth rattle!! All depends what you want.
Last edited by ramairws6; 05-25-2010 at 12:09 AM.
#15
Which LSR grind did you have? Do you have power numbers for both? You said had them, what do you have now?
#16
9 Second Club
iTrader: (33)
Yep, had the Striker in and now i moved on to a custom grind LSR. The Striker had huge top end power from 3500 rpm up and a little lacking in torque at lower rpm's. My custom grind LSR gained almost 20 lbs of torque at peak but lost 10 rwhp at the top end. The drivability is no comparison as the LSR grind is very tame, both have/had great tunes with both in the 110/111 LSA respectively. This is through a 4L60e mind you so this comparison "is what it is". At 2000 rpm's the LSR grind is already at 425 fbls. at the wheel so you be the judge. I really do miss the crazy top end of the Striker when i'm at the track, the thing is brutal!
#17
Yep, had the Striker in and now i moved on to a custom grind LSR. The Striker had huge top end power from 3500 rpm up and a little lacking in torque at lower rpm's. My custom grind LSR gained almost 20 lbs of torque at peak but lost 10 rwhp at the top end. The drivability is no comparison as the LSR grind is very tame, both have/had great tunes with both in the 110/111 LSA respectively. This is through a 4L60e mind you so this comparison "is what it is". At 2000 rpm's the LSR grind is already at 425 fbls. at the wheel so you be the judge. I really do miss the crazy top end of the Striker when i'm at the track, the thing is brutal!
#19
Hard to drop 5 grand on heads without clearcut expectations.
#20
FormerVendor
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Yep, had the Striker in and now i moved on to a custom grind LSR. The Striker had huge top end power from 3500 rpm up and a little lacking in torque at lower rpm's. My custom grind LSR gained almost 20 lbs of torque at peak but lost 10 rwhp at the top end. The drivability is no comparison as the LSR grind is very tame, both have/had great tunes with both in the 110/111 LSA respectively. This is through a 4L60e mind you so this comparison "is what it is". At 2000 rpm's the LSR grind is already at 425 fbls. at the wheel so you be the judge. I really do miss the crazy top end of the Striker when i'm at the track, the thing is brutal!
We also have a new design about to hit for the guys that want more than the STRIKER!!!