Opinions on 383 crate motors

[polar]

Yep I agree with you completely.


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[Chewy1576]

Well the Blueprint 383 TBI replacement has been ordered! Should be delivered in ~2 weeks. I'm going to run over to the shop that will be doing the swap and meet the guys sometime this week. Also I'm going to ask about having the transmission and transfer case gone through while it's all apart. I looked at the MSI Atomic EFI system and that may be an option later down the road, but for now I just want to get it up and running with the existing TBI.


The motor uses a 400 SBC crank, so I will need to pick up a new flywheel and clutch assembly as it will need to be externally balanced.

 

[TylerZ281500]

is it 2 piece or 1 piece rear, should already have a flywheel on it.

 

[polar]

Those engines don't come with flywheel/flexplates.


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[TylerZ281500]

no? ok i didnt know ive alwasyy built my own stuff. you cant rebalance it without taking the whole thing back apart.

 

[polar]

I'm 99% positive any 383 flexplate would work


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[Chewy1576]

I'm looking for either a 400 SBC ext balanced flywheel or an engine balancing plate (http://www.jegs.com/i/Quick-Time-Bellhousing/698/RM-525/10002/-1?parentProductId=2077586) that will let me use the 350 SBC flywheel with the ext. balanced 400 SBC crankshaft. I'm leaning toward replacing all of it with new gear.

 

[polar]

Why do you think it's a 400 sbc crank. There are 383 specific cranks that are different from 400sbc crabks


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[Chewy1576]

Called Blueprint and they said it's a 400 crank. Needs an ext balanced flywheel to go with the 400 SBC harmonic balancer on the front.

 

[polar]

Hmm that's odd. There website says it needs 350 sbc flywheel to work with the 400sbc balanced


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