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What's the largest possible cubic inch?

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rag231

Well-Known Member
Joined
Apr 30, 2005
Messages
1,579
What is the largest cubic inch stage 2 that can be built today?
 
I've been doing some tuning on a 283" motor.

The owner is contemplating selling it if interested. This is a motor that was brand new in the build. We're talking absolutely nothing used was used. This is a motor for someone that wants to run low 8's or even 7's.

The motor/combo is really just too much for current owner. Would be better for him to dumb it down. The guy literally went from a low 12 sec GTO Judge car to a 9 sec turbo regal.
 
PS. Thanks Cal for the initial XFI tune. Took very few passes to get the car into the high 9's - with much more to come if the owner ever grows some (I'm sure we could have gotten some mid-low 9's out of the car in just a few more passes).
 
If you could squeeze a 4" stroke in a 4" block, you'd have 302cu in.

3.750 stroke will make a 283.

Cubic inch displacement and liter calculator

Andy Jensen is a good friend of mine... and he is notorious for stuffing big crankshafts in small block Chevys. Don't think for a second that I haven't thought about asking him to work his magic on a StageII block for me. ;)
 
Raised cam version of the TA block?? Oddfire engine with a lot of stroke?? Please give us some details on how you'd get it there.

4.08 bore X 3.75 stroke. I would love to see a big ci odd fire setup. With the right software, you could even use a factory crank sensor for stealth mode:cool:
 
sounds like a killer street setup to me :eek:

What size billet turbo would that ci support cal ?
 
4.08 bore X 3.75 stroke. I would love to see a big ci odd fire setup. With the right software, you could even use a factory crank sensor for stealth mode:cool:

Yeah that does sound like a killer setup Cal! Kinda surprised nobody has built one yet. Maybe if I hit the lotto.:biggrin:
 
Yeah that does sound like a killer setup Cal! Kinda surprised nobody has built one yet. Maybe if I hit the lotto.:biggrin:


You think everyone tells the truth about what they have.....:biggrin:
 
sounds like a killer street setup to me :eek:

What size billet turbo would that ci support cal ?

Depends on your goals. For all out performance I would use a 47-88. For a killer street car, I would throw a 42-76 on it.

Brick: I don't think you will be the first guy to build a 3.75" stroker
 
You think everyone tells the truth about what they have.....:biggrin:

Nope, but honestly I really can't see why a person would try to mislead somebody about what they built. I guess for some kinda bragging rights?? Personally if I had a big cube oddfire stroker I would have no problem telling people about it.
 
I have 4.030 bore x 3.750 stroke odd-fire motors. Rod to cam clearance on 2 , 4 ,& 6 is a bit of a problem but it can, and has been done. Looking back i would not have gone with the 3.750 stroke cranks because of the cam clearance problem. It is not feasable to run aluminum rods with that crank. I have 2 3.500 stroke cranks with some monster MGP rods that will be seeing service soon!! Mike:cool:
 
I have 4.030 bore x 3.750 stroke odd-fire motors. Rod to cam clearance on 2 , 4 ,& 6 is a bit of a problem but it can, and has been done. Looking back i would not have gone with the 3.750 stroke cranks because of the cam clearance problem. It is not feasable to run aluminum rods with that crank. I have 2 3.500 stroke cranks with some monster MGP rods that will be seeing service soon!! Mike:cool:

That brings back memories of an old 421 SBC I built years ago... I had to clearence the rods to clear the already small base circle cam... I used a plastic wire tie as a go/no-go gage. I think I recall approx .030 clearence on a few lobes. :D
 
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