I picked up a 454 from a 1979 Suburban does anybody know the horsepower rating on that or know of a site that will tell me? Just curious on what the stock horsepower is.


thanks
onenasty

245 hp from the factory. 295 lb feet torque.

It's CR. should be anywhere from 7.9 to 8.5 to 1!!

So a set of old closed chambered heads like -601's at 96.7 to 98 cc's and a pair of .020" thick, steel Mr.Gasket shim headgaskets will help a bunch.

pdq67

PS., and I figure right at 8 to 1!!

I went with the closed chamber Edy heads (60499) and wasn't overly impressed (missed my goal by 40hp, see my thread in the HP section, dyno results, incl profile), If I were to do it over I'd bore 60 over, open chamber heads, big dome pistom, solid roller cam. Of course I would have spent abot $1500 more than I did.

I plan on boring it .60 over and adding all the goodie's to it.I would like to roll out about 500 to 550 horse.Right now I'm running a 355 and it doe's good but I've always wanted a big block and since I finally stumbled on one(got one hell of a deal swappped it for a running 305 even up) I'm gonna build it and see if I wanna stick with it or go back to small block.But for right now I'll go ahead with it and see.