stroking a 283
07-30-2013, 01:43 PM
#1
Pro
Thread Starter
stroking a 283
would it be possible to stroke a 283 with a 400 crank to come up withn a 355 or there abouts.
trying to think out side the box on a 355 flat top rule.
I was think a small bore with a long stroke would yeild a higher compression. and more bang for the buck.
thinking that I would have to have a 400 crank main turned down to fit a small journal 283.
would a 327 or 305 block work better ?
ruler say you need the use factory parts and factory replacement parts.
maybe Iam
, but this kinda popped in my head.
trying to think out side the box on a 355 flat top rule.
I was think a small bore with a long stroke would yeild a higher compression. and more bang for the buck.
thinking that I would have to have a 400 crank main turned down to fit a small journal 283.
would a 327 or 305 block work better ?
ruler say you need the use factory parts and factory replacement parts.
maybe Iam
, but this kinda popped in my head.
08-06-2013, 10:39 AM
#2
Burning Brakes
The problem that you'll face implementing this approach is one of piston comression height.
The stock 400 piston has a compression height (distance between the wrist pin center and the top of the piston) of 1.585 inches since it uses a shorter 5.565" rod. The only "stock" piston smaller than 4" that would work with the 400 crank is a 0.060" over 305 piston that would yield a displacement of roughly 340 cu in to say nothing of the valve shrouding issue caused by the smaller 3.801" bore. (The 283 piston uses a piston compression height of 1.825" and the stock 307 piston has a compression height of 1.7" both of which would cause the piston to stick up over the top of the bore.)
Even if you decided to forego the extra 15 cu in, the amount of work clearancing a 305 or 283 block for the 400's counterweights and rods would be extensive. Using a seasoned 350 block would require sleeving all eight cylinders to reduce the bore and notching the blocks for the rods. I'd stick with the 355 cu in 350-based engine instead.
Hope this info helps!
The stock 400 piston has a compression height (distance between the wrist pin center and the top of the piston) of 1.585 inches since it uses a shorter 5.565" rod. The only "stock" piston smaller than 4" that would work with the 400 crank is a 0.060" over 305 piston that would yield a displacement of roughly 340 cu in to say nothing of the valve shrouding issue caused by the smaller 3.801" bore. (The 283 piston uses a piston compression height of 1.825" and the stock 307 piston has a compression height of 1.7" both of which would cause the piston to stick up over the top of the bore.)
Even if you decided to forego the extra 15 cu in, the amount of work clearancing a 305 or 283 block for the 400's counterweights and rods would be extensive. Using a seasoned 350 block would require sleeving all eight cylinders to reduce the bore and notching the blocks for the rods. I'd stick with the 355 cu in 350-based engine instead.
Hope this info helps!
08-09-2013, 07:56 AM
#3
Drifting
You can always have a piston made for your application. Selecting your pin height and compression ratio. I just had a 350 crank turned to small journal to stroke a 283 just for the heck of it. I'll have JE make a set of pistons just for that particular engine.