What head for 383 builds
01-22-2019, 12:33 PM
#21
Le Mans Master
01-22-2019, 12:50 PM
#22
Melting Slicks
A 195 is hard to beat for a solid all around street engine with a mild or moderately sized HR cam.....more aimed at the conservative driver that spends most of his time under 6000 RPM
A 210 is a good choice for a hotter street strip application.....slightly larger cam and more RPM.....the guy that wants to run it up a bit and spin it 65-6800 RPM when he races it. Still a great choice with a conservative cam if your looking for a head you can get more aggressive with later.
....
Regards,
Tony
A 210 is a good choice for a hotter street strip application.....slightly larger cam and more RPM.....the guy that wants to run it up a bit and spin it 65-6800 RPM when he races it. Still a great choice with a conservative cam if your looking for a head you can get more aggressive with later.
....
Regards,
Tony
Tony, any thoughts on the appropriateness of building a roughly 6,000 RPM HP Peak 383 choosing the 210cc AFR head to have "room to grow" (potential to move to a higher RPM peaking cam later)? (looking at the airflow chart vs. min CSA diff (1.905" vs. 2.1") the airflow seems to increase more than the CSA with the jump to the 210cc head and a 383's got decent piston speeds at lower RPMs, too vs. a 350) -Assuming a modern hyd roller cam that should help keep the torque up in the lower RPMs?
-Just bump the TC stall and call it good?
This seems to be the place that so many of these build threads end. They end up right on the edge in application between the 195cc head and the 210cc head and at a distance on paper anyway it seems like the 210cc head holds more future potential than you'd give up on the bottom end.
Adam
01-22-2019, 02:18 PM
#23
Team Owner
Adam, all the new AFR eliminator heads have lighter small stem valves. lots of the modern LS h-roller motors have a factory 7000 red line. I've had friends who built their 383's using the later roller cam blocks with LS7 lifters and set their rev limiters to 7000. they use according to what I've been told cams with 236 or 240 intake duration. I have always been using solid rollers with the best components and red line is what ever I want. I've just kinda used a 7500 rpm limit to make things last longer.
01-23-2019, 01:14 AM
#24
Wow!
Tony, any thoughts on the appropriateness of building a roughly 6,000 RPM HP Peak 383 choosing the 210cc AFR head to have "room to grow" (potential to move to a higher RPM peaking cam later)? (looking at the airflow chart vs. min CSA diff (1.905" vs. 2.1") the airflow seems to increase more than the CSA with the jump to the 210cc head and a 383's got decent piston speeds at lower RPMs, too vs. a 350) -Assuming a modern hyd roller cam that should help keep the torque up in the lower RPMs?
-Just bump the TC stall and call it good?
This seems to be the place that so many of these build threads end. They end up right on the edge in application between the 195cc head and the 210cc head and at a distance on paper anyway it seems like the 210cc head holds more future potential than you'd give up on the bottom end.
Adam
Tony, any thoughts on the appropriateness of building a roughly 6,000 RPM HP Peak 383 choosing the 210cc AFR head to have "room to grow" (potential to move to a higher RPM peaking cam later)? (looking at the airflow chart vs. min CSA diff (1.905" vs. 2.1") the airflow seems to increase more than the CSA with the jump to the 210cc head and a 383's got decent piston speeds at lower RPMs, too vs. a 350) -Assuming a modern hyd roller cam that should help keep the torque up in the lower RPMs?
-Just bump the TC stall and call it good?
This seems to be the place that so many of these build threads end. They end up right on the edge in application between the 195cc head and the 210cc head and at a distance on paper anyway it seems like the 210cc head holds more future potential than you'd give up on the bottom end.
Adam
When your ready reach out to me personally and I will set you up with a winning combination....no guesswork and results you can count on
Talk soon
Tony
Last edited by Tony @ Mamo Motorsports; 01-23-2019 at 01:16 AM.