Trick Flow Heads vs AFR
Melting Slicks
Joined: Sep 2003
Posts: 2,062
Likes: 117
Hi par34n5,
Between those two my choice went to ETP 215...
Why???
Because I took a look at the reality of the technical aspect and the best of both brands is on the ETP Heads.
- Valve angle is rolled to 11° on the ETP vs.13.5° on the TFS and 15° for the AFR.
The ETP is the only one who made a casting with the same characteristics than the C5R, GM can't be wrong with the 24 hours Le Mans winning C5, don't you think?
- On the ETP heads the valve-train geometry is PERFECT with the OEM rockers and valve the train deflection is non-existant...
I rev my engine to 7450RPM with zero valve float.
- The ETP deck is the thickest when you compare the two others vs. the ETP...
- The ETP heads are the only one to have INSERTS from the factory to "on the top of the thick deck" improve rigidity, very well engineered sirs!!!
- ETP Factory or any of their dealers can deliver you from the factory the exact volume chamber you or your engine builder wants...for the same price!!!
- On the ETP heads the Intake port volume starts at 215cc then 225cc then 235cc then 245cc...thanks for the choice.
- The price is similar to the AFR and less than TSF when you add to those the roller rockers.
- At the end those ETP 215 in my daily driver stock cube stock shortblock on pump gaz that is so drivable than my wife use it...is producing 511rwhp and 455rwtq... and cruise 1200rpm in six gear or 20mph in a school zone in third...enough say I guess.
Regarding racing, in the big dog world, ETP is used by the best, but if you are racing, you know that you never tell the others what makes you the fastest...no???
The only problem is that ETP is selling so much that they don't need to advertise and you may wait a little more to obtain them vs.the competition.
Christian
Between those two my choice went to ETP 215...
Why???
Because I took a look at the reality of the technical aspect and the best of both brands is on the ETP Heads.
- Valve angle is rolled to 11° on the ETP vs.13.5° on the TFS and 15° for the AFR.
The ETP is the only one who made a casting with the same characteristics than the C5R, GM can't be wrong with the 24 hours Le Mans winning C5, don't you think?
- On the ETP heads the valve-train geometry is PERFECT with the OEM rockers and valve the train deflection is non-existant...
I rev my engine to 7450RPM with zero valve float.
- The ETP deck is the thickest when you compare the two others vs. the ETP...
- The ETP heads are the only one to have INSERTS from the factory to "on the top of the thick deck" improve rigidity, very well engineered sirs!!!
- ETP Factory or any of their dealers can deliver you from the factory the exact volume chamber you or your engine builder wants...for the same price!!!
- On the ETP heads the Intake port volume starts at 215cc then 225cc then 235cc then 245cc...thanks for the choice.
- The price is similar to the AFR and less than TSF when you add to those the roller rockers.
- At the end those ETP 215 in my daily driver stock cube stock shortblock on pump gaz that is so drivable than my wife use it...is producing 511rwhp and 455rwtq... and cruise 1200rpm in six gear or 20mph in a school zone in third...enough say I guess.
Regarding racing, in the big dog world, ETP is used by the best, but if you are racing, you know that you never tell the others what makes you the fastest...no???
The only problem is that ETP is selling so much that they don't need to advertise and you may wait a little more to obtain them vs.the competition.
Christian
The Intake ports are ~240cc with the 2.100 Intake Valves and it will be enough to fill the needs of this strocker!!!
Christian
Melting Slicks
Joined: Sep 2007
Posts: 2,597
Likes: 3
From: READING PA
St. Jude Donor '08-'09-'10
Melting Slicks
Joined: Sep 2003
Posts: 2,062
Likes: 117
Hi LSCHLEM,
I asked Ed Curtis to spec a cam for this engine with a power band from 4700rpm to 6900rpm...and still totally streetable!!!
I guess he ended with something in the mid to high 240° @ 0.050 and some .630 lift.
Christian
I asked Ed Curtis to spec a cam for this engine with a power band from 4700rpm to 6900rpm...and still totally streetable!!!
I guess he ended with something in the mid to high 240° @ 0.050 and some .630 lift.
Christian
