I have the 454HO in my 69 Chevelle, and w/3.31 gears and 28" tall tires I was trapping at 107+. This was w/a leaky fuel line
. Now that I have 26" tall drag radial, fixed fuel line, I hope to get 110 mph. I dont know what kind of #'s the Ls6 was turning, I'd be interested to know. There was a magazine test where both motors were tested against each other, and the 454HO won, but the backed alot of timing out of the LS6 motor b/c of fuel (lack of leaded fuel today). LS6 I would guess would of made more power if they put the timing in it I would imagine.
If anybody has the article I would love to see it.
Originally Posted by RDave
This is my first post in the engine mods forum.
I wondered if this engine would be equal in performance to the
1971 Corvette LS6? :
Chevy High Performance did a baseline test on this engine using cast iron exhaust mainfolds (I'm not sure if they were the 1970 Chevelle LS6 or the 1971 Corvette LS6 type) and a generic stock exhaust:
It looks like the cam is pretty conservative. I guess Chevy's HP and TQ ratings were done with headers, which explains the difference with the Chevy High Performance tests. Any thoughts?