If you bump up your compression and add a cam to the least I would say you will tell a big difference between the old motor and the new, if you were to add aluminum heads, intake, and headers if you don't already have them and it will be a whole different animal than before.
Josh Campbell The Body Shop (606) 265-5301 66 SS 396 (Black on the rotisseree, 1st car never part with it) 66 SS 396 (Red got it on a trade I only wanted the steering wheel) 87 Monte Carlo SS Sadly sold it guy offered me more than I thought it was worth 71 Malibu FOR SALE NEED MORE SPACE IN THE SHOP!!!!! You should never have a battle of wits with morons ... they'll just drag you down to their level & beat you with experience. --- On Fri, 7/10/09, [email protected] <[email protected]> wrote: From: [email protected] <[email protected]> Subject: [Chevelle-list] Time for a new engine! To: [email protected] Date: Friday, July 10, 2009, 10:50 AM Hey everyone, Well for the last few months my Chevelle has been backfiring and running like crap. I finally figured out what the deal was yesterday....The exhaust valve on #8 is burnt. The motor is old and tired. So I'm going to rebuild it. So any idea's for engine combo's? I don't have a bunch of money to spend on this but I would like to bump up the performance of it. Right now it's a really stock 454, 8:1 compression. I'm thinking about bumping up the compression to 9:1, adding a cam, and if I can afford them, maybe some aluminum heads. I think that would really waken up this motor. But basically this is a street car that's cruised 99.9% of the time. So I want the drive-ability. Anybody else care to chime in? Thanks! -Tim Finding the best videos just got easier. Try the NEW Truveo.com.

