V-8 425 4bbl MW-code engineblock

[Guest NorwegianRivRoy]

Hi!

Does anyone know if I can use this engineblock (MW= 1966 425cid four barrel) with my 1964 Buick Riviera trans (st400). I think not, but neighter I or the seller is sure..

Item:

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=270296104229&ssPageName=ADME:X:RTQ:MOTORS:1123

[Bill Stoneberg]

I THINK that the crank changed in 1964 when they changed from the Dynaflow to the st400 and I think it stayed the same till the end of the nailhead engines.

So, I THINK you may be OK. Where you will have issues is in the crank though, take a caliper and measure the pilot holes and see.

[RivNut]

The 64 - 66 cranks all use the same flexplate. You can bolt the '66 engine up to your '64 trans with no problems; just use the 64's intake, carb, and kickdown linkage.

This list of casting numbers from Buicks.net shows the same casting numbers were used from '63 - 66 for the 425's. 64 - 66 401/425 cranks are all the same. Bolt 'er up.

1340146 63-66 425

1354704 63-66 425

1354713 64-66 425

1354714 64-66 425

1364704 63-66 425

1364705 64-66 401/425

Ed

[Guest NorwegianRivRoy]

Thanks!

I was too late... Seller ended the auction earlier... Probably sold it.

But now I know next time!

Roy