Thread: SBC build ideas.

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Yes, familar with both stroking and destroking SBCs.

I am starting on a standard bore/stroke and working with bolt-ons for the sake of educating myself.

350RWHP is pretty much achievable without doing anything drastic I'd imagine?

As for the tranny, all I know is it is the "turbo" 4 speed trans that came with a 5.7L Chevy G30 work van with a 1 tonne (I THINK) 12 bolt posi rear end. Like I said, still gotta find out the gearing and the rest of the block info, havn't cracked open the valve covers yet. There are NO numbers cast on the exterior?

I am trying to get this build done reliably, but also on the cheap, and preferably without altering the short-block at all.

Financially there is a very big difference between a properly done 383 build and just beefing up a 350 with bolt-ons and some new internals. But would you say pushing the 5.7L to 350RWHP N/A is practical on less than a large budget? 3-3.5 thousand tops?

Originally Posted by nfswift

Yes, familar with both stroking and destroking SBCs.

I am starting on a standard bore/stroke and working with bolt-ons for the sake of educating myself.

350RWHP is pretty much achievable without doing anything drastic I'd imagine?

As for the tranny, all I know is it is the "turbo" 4 speed trans that came with a 5.7L Chevy G30 work van with a 1 tonne (I THINK) 12 bolt posi rear end. Like I said, still gotta find out the gearing and the rest of the block info, havn't cracked open the valve covers yet. There are NO numbers cast on the exterior?

I am trying to get this build done reliably, but also on the cheap, and preferably without altering the short-block at all.

Financially there is a very big difference between a properly done 383 build and just beefing up a 350 with bolt-ons and some new internals. But would you say pushing the 5.7L to 350RWHP N/A is practical on less than a large budget? 3-3.5 thousand tops?

Yes,3.0 to 3.5.
$3,500 will get you a 450 hp 350 easily.
The long block anyway.

That's good to hear. A bolt-on only 350 would make close to the power I want but to get it all the way there it will probably just need an entirely new top end no? Aftermarket heads, new cam, intake and carb...

Bow Tie Iron Vortecs always caught my attention? Will a pair of used double humps flow up to 350 WHP? I'm going for cost efficient here, as any budget I save on will go to other parts needed for the car.

Cheap, but sturdy, and 350WHP. I just want something for the street with a bit more go than average "quick" cars that I can wind out on the strip for an ok timeslip a few times a year.

Originally Posted by nfswift

That's good to hear. A bolt-on only 350 would make close to the power I want but to get it all the way there it will probably just need an entirely new top end no? Aftermarket heads, new cam, intake and carb...

Bow Tie Iron Vortecs always caught my attention? Will a pair of used double humps flow up to 350 WHP? I'm going for cost efficient here, as any budget I save on will go to other parts needed for the car.

Cheap, but sturdy, and 350WHP. I just want something for the street with a bit more go than average "quick" cars that I can wind out on the strip for an ok timeslip a few times a year.

The only problem with the double hump heads they are 30+ years old.
I.M.O.,I would not put a lot of money in to them.
If you are looking at Vortec heads also look at Dart Iron Eagle,Worls S/R Torquer.
I would also look at the imported aluminum heads these can be found bare in the $500 area.
Happy Thanksgiving.