Stick with your first thoughts, a full roller is much better less friction. And less friction, equals more power. Your goals for 500, can be done without having to spin the motor 6500 - 7000 RPM's. It just takes the right combonation, of matched parts along with good forged internals, Mike. SCT Tuner.:bigthumbsup
408 cleveland street combo?
Hey Guys,
New here. Looking at building a 408 with my 351C. I have the 4V heads closed chamber. I've seen buillds out there but they seem to be a little low on tq until you get to 3000 RPMs. It's a street car, 1971 mach 1. I'd like to see the 500/500 range but I don't want to have to turn the motor to 6500 or 7000 RPMs to get there. Is what I want possible or do I need to adjust my expectations. I'd rather build a full roller but maybe flat tappet is the way. Don't know. Looking for suggestions. Thanks.
New here. Looking at building a 408 with my 351C. I have the 4V heads closed chamber. I've seen buillds out there but they seem to be a little low on tq until you get to 3000 RPMs. It's a street car, 1971 mach 1. I'd like to see the 500/500 range but I don't want to have to turn the motor to 6500 or 7000 RPMs to get there. Is what I want possible or do I need to adjust my expectations. I'd rather build a full roller but maybe flat tappet is the way. Don't know. Looking for suggestions. Thanks.
1 - 4 of 4 Posts
Thanks I appreciate the reply. Glad to hear I can achieve what I want. You wouldn't, however, happen to know what that right combo of parts to reach that goal would be do ya?:scratchchinStick with your first thoughts, a full roller is much better less friction. And less friction, equals more power. Your goals for 500, can be done without having to spin the motor 6500 - 7000 RPM's. It just takes the right combonation, of matched parts along with good forged internals, Mike. SCT Tuner.:bigthumbsup
Go with a roller cam. The conversion will cost more, but will probably be worth the extra cost. The extra cubes will lower the powerband some. With those big ports on the Cleveland head, it will have more torque at lower rpm's, depending on your cam choice. I installed a mildly built '70 351C in a '67 coupe 20 years ago, and it probably made close to 400 hp, while getting 18 mpg on the highway.
1 - 4 of 4 Posts
- This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Ford Mustang Forum
A forum community dedicated to Ford Mustang owners and enthusiasts. Come join the discussion about performance, builds, modifications, reviews, engine swaps, classifieds, troubleshooting, maintenance, and more!
Full Forum Listing
Explore Our Forums
Recommended Communities
