Thread: The Sb Destroker's Dream Engine

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I do think this is the most powerful destroked SB Chevy engine that can be made . It starts out with a 400 block . then a L/J ( 327 Crank ) With it's 3.250 Stroke . Install it in the block using TRW# MS3063P Thick-wall main bearings . And a set of 5.700" L/J Rods . With a set of TRW#L2418F Domed Pistons that will give a C/R of 12.5.1 with 64cc heads . Now you will have a ( 348ci SB ) or with a .030 over-bore a ( 352ci SB ) . COOL The TRW#s can be crossed .

wait and see how many people say it sucks or dont work, im all for it. i wouldnt mind having one if this bbc thing doesnt pan out RING RING <nudge nudge> but anyway....sleep time finally!... 4:58am

That combo would probably be good in the Rs Dept , but may be down a little in torque. Kinda like a big version of a 302, once the Rs come up it would be a bear. I would try one.

Bob

Originally Posted by Bob W

That combo would probably be good in the Rs Dept , but may be down a little in torque. Kinda like a big version of a 302, once the Rs come up it would be a bear. I would try one.

Bob

You can always go with the biggest destroker .This is made with the 400 block . And the ( 3.484 ) 350 crank Now you have a ( 372ci ) or .030-over a ( 378ci ) This one will not be down on Torque . I do know a guy that drives a 1962 Corvette with a built 378 and a TH400 and a 9" rear end 430 gear . His car is very streetable and runs high 11s .

We still build a lot of the 374-380.
A few of the tracks go very "dry-slick" around here.
If it is an open class then it is the 14.5 to 1 comp. ratio,along with a 6.125 rods,mech. roller cam etc.
For a bull-ring it is not un-common to use a 6.50 gear or more.

Originally Posted by erik erikson

We still build a lot of the 374-380.
A few of the tracks go very "dry-slick" around here.
If it is an open class then it is the 14.5 to 1 comp. ratio,along with a 6.125 rods,mech. roller cam etc.
For a bull-ring it is not un-common to use a 6.50 gear or more.

We ran them at about 15.5 - 16:1 on methanol in the late 70's on a high banked bull-ring in the sprinter. Larry Nagel built the engines, don't remember the exact setup but it was 3.48 stroke, long rod and a hi $$$$ piston. Track had a 400 ci limit then, when it went dry slick we would put the final gear ratio at about 6.70:1, set the chassis very soft, feather-foot the throttle, and run on the bottom!!!! If the track pulled any moisture up at all, could do some giant wheelies coming off the turns!!!!!

Now Dave this is COOL . You do have some love for the SB Chevy .

Originally Posted by tango

Now Dave this is COOL . You do have some love for the SB Chevy .

Nope. No love for them at all. I was just the "hired gun" that drove the car. Later when I was one of the owners, we had an engine shop for a sponsor and he built chebbies for the car..... My preferences had nothing to do with it...

That's right your a Body man .

Originally Posted by tango

That's right your a Body man .

Nope, I'm a fabricator, machinist, and a sheet metal man. Just do body work cuz none of them around here will do what I want for a decent price!!!!!

PS--I do know my way around engines, too.......An engine is just another component of the car.... I choose to not specialize but rather build the car from concept to cruizin', then sell it and start over.....

IMO the engine is the easy part. Buy the right pieces, have a good machinist do the work, bolt it together....No big deal.

What kind of engine are you going to bolt together for that 1982 Camaro ?

Originally Posted by tango

What kind of engine are you going to bolt together for that 1982 Camaro ?

Aluminum head 408 Windsor stroker with a C-4 tranny.... It's Jackie's car, she has a bad hip and doesn't like to run around town with a 5 speed anymore..... Otherwise it would have a TKO 5 speed.

That's ok I have a 1987 Mustang GT that will get a 355 SB Chevy with a TH350 Trans . But I will use the ford rear end .

Originally Posted by Dave Severson

Aluminum head 408 Windsor stroker with a C-4 tranny.... It's Jackie's car, she has a bad hip and doesn't like to run around town with a 5 speed anymore..... Otherwise it would have a TKO 5 speed.

What kind of HP do you think this 408 will have ?

Enough..... I don't guess on hp or use a virtual dyno. As a street car, the emphasis is torque, not horsepower. When it's all done I'll put it on the chassis dyno, do some tuning, and post the numbers.

It also has a lot of "unique" sheet metal work, 4 bar rear suspension, coilover/strut front suspension, 6 point cage, custom dash, and a whole bunch of other mods. I build cars with certain parameters in mind and performance, styling, and handling goals planned out long in advance of the build ever starting. My ultimate goal is always to have all the components compliment each other and work together to achieve the goals I established in the planning stage. The 'maro is just a street drive, no big deal. The Ranchero would be most closely described as pro touring, with the objective being 250 mph at Bonneville. We used to have discussion here about building the car to a "theme"..... Doesn't happen much anymore I guess. About half the threads on here anymore are just a re-hash of which cam and heads to put in a sbc....... Nothing wrong with that, I guess. Just hate to see people limit themselves to just an engine, or just the paint, or just anything!!!!!! The entire car and all of it's pieces conveying the same theme and all designed and built to achieve a certain goal is way big fun!!!!!