I'm building a 383 out of an '89 f-body block (1 piece rear main seal) but I am finding good deals on 2 piece 383 cranks. My question is, is there an adapter I can use to make this work (I think I heard that somewhere) and if so, is that way legit, or should I dish out the extra cash for a crank made for a 1 piece seal? Thanks.

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'89 Camaro RS 6cyl. auto, don't know how much longer I'll have it.
'90 Iroc TPI 305, 5 spd B&M Ripper shifter, hopefully I can rob a bank or something and get more
www.geocities.com/irocnroll90

 

Well I would get a new crank instead, but if you are really set on using an old used abused 400 crank, theres a bunch of companies that sell an adapter. Last time I looked (and Ill admit it was quite a while ago) GM had the cheapest and IMO nicest adapter.

If those 2 piece cranks you are looking at are new, keep in mind it just gives your engine an extra place to leak from.

 

i got a buddy selling a brand new lunati 4130 stroker crank for a 1 piece rear main block. its got lightening holes, made to stand up to 700hp, brand new in the box. its non-twist forged and its probably one of the best cranks you can buy short of a Sunny Bryant or Callies. Hes looking for about $1100 for it. drop me an email if your interested.

 

call scat or speed o motive they have dirt cheaap stroker kits anyway you like it and scat sells a 1 piece cast steel crank for a 383 not sure of the price though