Thread: If you had to guess

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I bought a 454, with stock compression and small oval port truck heads. I suspect the compression to be in the 8.0-1 range. the guy swapped cams, its an RV cam .500 lift, with .238 @ .050. I bought a used weiand stealth intake and 750 vac holley carb. With a set of 1-3/4 tube headers will this motor make 325 HP? i just want a daily driver i can run on pumpgas on the highway?

Originally Posted by Grumpy 427

I bought a 454, with stock compression and small oval port truck heads. I suspect the compression to be in the 8.0-1 range. the guy swapped cams, its an RV cam .500 lift, with .238 @ .050. I bought a used weiand stealth intake and 750 vac holley carb. With a set of 1-3/4 tube headers will this motor make 325 HP? i just want a daily driver i can run on pumpgas on the highway?

That is a lot of duration at .050 for an RV type cam.
Are you sure about the duration?
If the duration is correct I.M.O. you have to much cam for your compresion.
With that low 8.0 to 1 comp. ratio.I would look at cams that are no more than 210 to 215 at .050. for duration.

how about this cam 500/500 22/234 114 #12031 howards this is close to a mercury marine cam this cam with no cr will make 330 hp in a 454 thats was mercury said they made so you should get that +they had a stock iron intake low rise type . i have us this cam in some builds i think it works very good with low cr

Ok the guy i got the motor from was guessing at the cam specs? I will have to get the grind number and look it up. Thanks for the reply guys, this motor is going in my 69 chevelle, as a daily driver.