Horsepower Estimate?
Thread Starter
Racer
Joined: Feb 2015
Posts: 336
Likes: 42
From: Grand Ledge, MI
Horsepower Estimate?
Just curious what you guys think about how much power this engine will make, it is not in my '69 yet so if there is something you would change that would make a big difference let me know! I know a roller cam would help a lot but I don't want to over do it, what would be the real world increase of a roller cam? Also I have a set of Edelbrock Vic Jr. 215cc 72cc Aluminum Heads but I think that would be to aggressive for my set-up, what are your thoughts on using those heads with 1.6 Rockers? Thanks for the help as always! First engine build can be kind of stressful when listening to people you think know everything, but then reading up a lot online i've learned they don't know very much at all lol. This engine will be ran with a M-21 Muncie 4-Speed and in my '69 Corvette, rear gear will be either 3.55 or 3.70. Not sure whats in it no but if its low its getting 3.70.
388ci (.060 over) w/ Scat Crank
Edelbrock Performer RPM Air-Gap Intake
Mighty Demon 750 Mech Sec. Carburetor
198cc 64cc 2.02/1.60 Aluminum Heads
1.5 Full Roller Rockers
10:1 Compression Pistons (not sure brand)
Summit 110gph Mech. Fuel Pump
Flowtech 1-5/8" Long Tube Headers
.225/.235 .279/.289 .465/.470 112 Degree Howards Cam/Lifter Hydraulic Flat Tappet
388ci (.060 over) w/ Scat Crank
Edelbrock Performer RPM Air-Gap Intake
Mighty Demon 750 Mech Sec. Carburetor
198cc 64cc 2.02/1.60 Aluminum Heads
1.5 Full Roller Rockers
10:1 Compression Pistons (not sure brand)
Summit 110gph Mech. Fuel Pump
Flowtech 1-5/8" Long Tube Headers
.225/.235 .279/.289 .465/.470 112 Degree Howards Cam/Lifter Hydraulic Flat Tappet
Last edited by cdavis03; Jan 8, 2019 at 09:20 PM.
Race Director
Joined: May 2003
Posts: 10,956
Likes: 409
From: California
375
400+ If you change the cam... 400 roller cam similar specs.. better roller cam with more lift and more duration 450
and put on the Edelbrock heads.... sounds like the other heads you have are no-name heads or China wantabeesssss
if you could get 11:1 with the edelbrock heads even better and another 25+ hp and 30 tq
400+ If you change the cam... 400 roller cam similar specs.. better roller cam with more lift and more duration 450
and put on the Edelbrock heads.... sounds like the other heads you have are no-name heads or China wantabeesssss
if you could get 11:1 with the edelbrock heads even better and another 25+ hp and 30 tq
Last edited by pauldana; Jan 9, 2019 at 12:21 AM.
Thread Starter
Racer
Joined: Feb 2015
Posts: 336
Likes: 42
From: Grand Ledge, MI
Originally Posted by pauldana
375
400+ If you change the cam... 400 roller cam similar specs.. better roller cam with more lift and more duration 450
and put on the Edelbrock heads.... sounds like the other heads you have are no-name heads or China wantabeesssss
if you could get 11:1 with the edelbrock heads even better and another 25+ hp and 30 tq
400+ If you change the cam... 400 roller cam similar specs.. better roller cam with more lift and more duration 450
and put on the Edelbrock heads.... sounds like the other heads you have are no-name heads or China wantabeesssss
if you could get 11:1 with the edelbrock heads even better and another 25+ hp and 30 tq
