481X to powerglide

Looks like our old nostalgia motor is down the tubes now and we are going with a AJ 481X with Olds heads. I already picked up a ATI superglide and converter for the old BBC engine. The 481X has a 8 bolt 426 style crank so I will need to change flex plates from the Chevy patern. The converter will have to be re-worked also I guess, going from a 4.25 stroke 496 to the new engine with a 4.5 bore and 3.5 stroke. I see Reactor has a Chrysler to glide flex plate. Any other problem I need to look out for when putting a glide behind the 481X ?
Thanks for the help. ...Jon

 

481x/pg

shold not be problem. converter will be same check spacing. some cranks are .100 long mondello makes nice billet flexplate 8bolt to chevy.
glenn tucker

 

The reactor has no recess to register the crank flange unless they have changed it .

 

JW makes an adapter to bolt to the flexplate with a register for GM converter.

Keith

 

I have a brand new reactor flexplate for a 8 bolt flange on a GM crank.

 

Flexplate

MEZIERE ENTERPRISE MANUFACTURES A FLEXPLATE FOR THIS APPLICATION
760-746-3273
4340 CRO MOLLY I PEICE,GEAR CUT TEETH,168 TOOTH,NO ADAPTERS NEEDED

 

Called reactor, they said I need a crank adapter. I see ATI has one part # 915640. The crank adapter and then the flex plate, does this sound right? Don't need the ring gear on the flex plate as we will be using the blower starter. I looked at the Meziere web site and they showed 3 0n 10.75 the converter I have is a 6 bolt on 10.75

 

meziere

call me 760-746-3273 on the meziere deal,I have what you need.8bolt fuel crank flange,w/ built in pilot for convertor,6 x 10.750 and or 6 x 11.500
we build these for Chance and ATI,continental..coan too

 

Thanks John. I called but they told me you take off at 2 . I will get a hold of you tomorrow at lunch time. They wanted me to talk to you to make sure we get it right.
Thanks. ...Jon Wallace.

 

481 x

what is a 481x motor?.does it have the bell pattern of a chevy or a chrysler?what about the crank centerline,chevy or chrysler?...thanks...

 

http://www.alanjohnson.com/ajpframe.htm
The block we got has chevy and chrysler bolt patern, chrysler crank.