[Beach Cruiser]

I'm building a 67 RS autocross/track toy that can still be street driven. So far the car has a custom front clip with C5 corvette suspension and a C4 corvette IRS out back. Sitting in the car now is a small block and a NASCAR built super T10

My son blew his LS1 motor on Sat and scooped up a longblock locally, I now have a LS1 at my disposal (if it's rebuildable) Between he and I we have enough take off parts to pretty much make a complete motor minus the accesories.

So here's the question. Should I continue to keep the SBC that's in the car now or go with the LS1?

The SBC is a destroked 400. 4 bolt main, steel crank, wiesco pistions and chevy pink rods. Heads are 441's with 2.02 1.6 valves, fully ported and port matched to the headers and intake. Intake is an old school torquer single plane. Carb is a 650 mech. Estimated power around 425 or so.

LS1 would be a mild build with the usual bolt ons. Custom mega squirt efi controller, maybe put a carb intake on it and use the 650?

I would keep the Super T10 trans (4speed) that I have now in either case.

At this point on the car, I still have to do the fuel system and the wiring so either route logisitcally would be the same.

Anybody know the weight difference between a iron headed SBC and an LS1? What would you guys do if you had the choice?

[rocky]

Mills I vote for the LS. Old school is cool but the LS in a 1st gen just looks awesome when done right. It is around 100# lighter than the SBC. You know you will get better power and economy out of it. If you want to look for anything for you out here in the sticks let me know. I hope to see you at the next Autox. Or if you need some extra hands one weekend let me know also