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We're building a Class 8. We don't have a big engine budget so we need the most power for the cheapest price. I'm pretty sure a big block would accomplish this. What kind of actual weight difference is their between the blocks of the sbc and the bbc. Are they close enough that lightening other parts of the front end could make up the difference? What do you think the best front to back weight distribution we could hope for with a BB?
Thanks,
Brandon
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You have a lot of questions, and this is a good place to ask them, but may I suggest that you spend some time around and with a current Class 8 team to get a better feel for what you are getting yourself into. Regarding the BBC, with Aluminum Heads and Intake Manifold you can get the weight to about 100 lbs more than a SBC with similar parts. The real question is if a big block is legal in a ½ ton frame or if you need to use a ¾ frame. I’ll leave the answer up to your imagination.
As far as the rules go, from what I've gathered from the other class8 guys on the board is that the people who actually race the class seem to have their own set of rules that they have tried to get SCORE to use. Pretty much, as long as your block is the same material as stock, your frame isn't modified (except for front 8"), and everything is the same manufacturer your legal til you win, which I don't expect to do for a long time.
I would advise you to take Ramsey's advise and get close any of the class 8 that are in your area. We are all nice guys. I never meet a jurk that races this class. Furthermore ask Klause to get you on the Class8Colition mailing list. Its not the greated thing ever but we are all on it and this is where we sometime discuss things.
Josh
Where can I do that?
BTW. If you are on a buget go with a nearly stock big block. Spin it slow, keep the compression down and use the torque to move the truck.
Find one of klause's post some where on the site and PM him. It's his site and I belive he can set you up. Other wise go the thread about Score roll bar rule change and PM JimPat (Jim Patelli 8 trk racer) and he can get you on.
Josh
go with a 400 with some vortec heads and a hydraulic roller, let the 500+ ft lb`s of torque keep ya moving.
if its in the budget some afr`s would really wake a mild 406 up.
obstacles are what you see when you take your eyes off the goal
Is anyone driving a class8 with a big block now?
I can’t think of one. If you went with a mild 454 and maybe even built it to burn 91-pump gas it would be cheap to build and operate. If you are worried about getting busted on the rules, don’t know one cares. Plus, if you are like me you will blow up a few engines trying to figure out how to care for and operate them.
I recommend that you don’t dump gobs cash it your first engine.
Josh
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