“COFFEE TALK” 83 cutlass supreme

Status
Not open for further replies.

1-sic-83

Apprentice
Aug 3, 2019
63
148
43
Fort Wayne indiana
Yeah I been looking for the egr plate and manual fuel pump block off plate if u can point me in the right direction a link for the site would be really helpful
 

1-sic-83

Apprentice
Aug 3, 2019
63
148
43
Fort Wayne indiana
Looks like a 72 Olds 350, think I see a 7 with a little A. I assume stock, low compression pistons? How small is that billet crank pulley? Does it use regular bolts, the really small underdrive pulley caused cooling and charging issues. Hopefully you have good luck with the Edelbrock carb, many Olds guys especially have not, stay Holley. Hopefully you can get that chrome thermostat housing to seal, a few us had issues. I have had issues sealing anything other than the factory iron water necks on Edelbrock aluminum intakes. It took double gaskets and sealant even with the Billet aluminum Robmc water neck. Cool build.

Can u send me the link for the egr block off plate an I’m not sure on the size for the pulley but no it dnt take regular size bolts I had to get round Allen head bolts for the hardware
 
Oct 14, 2008
8,823
7,775
113
Melville,Saskatchewan
I included the link above. I used a March pulley they sell separate, bigger diameter and lined up with the crank pulley.
 
  • Like
Reactions: 1 user

1-sic-83

Apprentice
Aug 3, 2019
63
148
43
Fort Wayne indiana
Here’s the inner diameter of the pulley an the motor is I believe at 80 olds motor has a 3b
DFD892A1-B5A3-45C4-A992-8548BD2F3633.jpeg
0EE150EF-4B30-42F3-AA70-F82B6E9337A2.jpeg
1F363271-9297-4C22-A4BA-D5A1CEE0D70A.jpeg
 
Oct 14, 2008
8,823
7,775
113
Melville,Saskatchewan
Even with .040" head gaskets and stock 14cc dish pistons .020" below deck, with those early 350 heads you will have at least 8.6 to 1 without any milling. With a mild cam, it will perform decently. Be glad you don't have the shitty flowing, crack prone 3A heads.
 
  • Like
Reactions: 1 user
Oct 14, 2008
8,823
7,775
113
Melville,Saskatchewan
That crank pulley will need at least a 100 amp alternator and will run hotter. This one should work, depending on what length water pump you have, Oldsmobile has 4 lengths. There is no 4.25" water pump, probably for the 6" pump probably already on that motor.
 
  • Like
Reactions: 1 users

1-sic-83

Apprentice
Aug 3, 2019
63
148
43
Fort Wayne indiana
Even with .040" head gaskets and stock 14cc dish pistons .020" below deck, with those early 350 heads you will have at least 8.6 to 1 without any milling. With a mild cam, it will perform decently. Be glad you don't have the shitty flowing, crack prone 3A heads.

Where do I look to see what heads I have because they are stock along with the block
 
Oct 14, 2008
8,823
7,775
113
Melville,Saskatchewan
No, those heads are 1972, the big #7 and little "A" above #1 and #8 spark is a 1972 head. Different # on different year motors. Those 7a heads have a much better flowing exhaust port and 7cc smaller chamber than the stock 3A heads that came stock on the 3B block. You may need the 2 groove pulley March or CVF sells, just noticed you have the two groove pulleys.
 
Status
Not open for further replies.

GBodyForum is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. Amazon, the Amazon logo, AmazonSupply, and the AmazonSupply logo are trademarks of Amazon.com, Inc. or its affiliates.

Please support GBodyForum Sponsors

Classic Truck Consoles Dixie Restoration Depot UMI Performance

Contact [email protected] for info on becoming a sponsor