jayfire
Well-Known Member
I did not build this engine, but the information listed below is what was told to me by the previous owner who had it built in the late 80's.
1968-426 original block bored .030 over
Arias 7-1 forged blower pistons
Crane hydraulic cam, unknown specs, but said it was mild
Stage V aluminum heads with all stock rebuilt rocker assemblies
TTI 2" primary headers to 3" H pipe dual exhaust
6-71 Weiand blower
Holley Sniper Stealth 4500 with timing control
The car runs good and pulls hard (68 GTX, 4 speed, Dana 60 3.23 gears) I have done a remote tune with a well respected tuner out of Texas. After reviewing my data logs, he said that I was at 330lbs per hour of fuel, which at that AFR was about 532-550 horsepower. Now that was at 5200 rpms with 62% throttle and 3-4psi of boost (I have the pulleys to be 12% overdriven) He said with more throttle, equals more boost, I should be around 600 horsepower max. Does this sound about right? The previous owner said he had this blower (bought in 1975 from Honest Charlies Speed Shop) on a low compression 440 with iron heads and exhaust manifolds and said it dynoed at 720 horsepower to the crank. He said it should be closer to 900 on the hemi. I'm starting to think I was fed some bovine fecal matter!! Does 600 HP sound more realistic? Thanks
1968-426 original block bored .030 over
Arias 7-1 forged blower pistons
Crane hydraulic cam, unknown specs, but said it was mild
Stage V aluminum heads with all stock rebuilt rocker assemblies
TTI 2" primary headers to 3" H pipe dual exhaust
6-71 Weiand blower
Holley Sniper Stealth 4500 with timing control
The car runs good and pulls hard (68 GTX, 4 speed, Dana 60 3.23 gears) I have done a remote tune with a well respected tuner out of Texas. After reviewing my data logs, he said that I was at 330lbs per hour of fuel, which at that AFR was about 532-550 horsepower. Now that was at 5200 rpms with 62% throttle and 3-4psi of boost (I have the pulleys to be 12% overdriven) He said with more throttle, equals more boost, I should be around 600 horsepower max. Does this sound about right? The previous owner said he had this blower (bought in 1975 from Honest Charlies Speed Shop) on a low compression 440 with iron heads and exhaust manifolds and said it dynoed at 720 horsepower to the crank. He said it should be closer to 900 on the hemi. I'm starting to think I was fed some bovine fecal matter!! Does 600 HP sound more realistic? Thanks