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Forum: Big Pontiac(incl G-body)Parts WANTED 04-29-2024, 05:19 PM
Replies: 17
Views: 655
Posted By T.Weber
drain89, Another possibility is...

drain89,
Another possibility is a pulley from a 65?, it's stamped steel and is part #9781741 from what I've read this is a direct replacement for the cast aluminum pulley. this info...
Forum: Big Pontiac(incl G-body)Parts WANTED 04-28-2024, 11:34 PM
Replies: 17
Views: 655
Posted By T.Weber
drain89, The 2 grove pulley...

drain89,
The 2 grove pulley doesn't have a part number on it BUT it's the same pulley as used on the non A/C cars. I checked it against my known non A/C pulleys, they all measureds out...
Forum: 60 & Older Pontiac TECH 02-19-2024, 04:38 PM
Replies: 14
Views: 3,550
Posted By Bill Hanlon
30 years ago I chopped up the stock '57 bracket...

30 years ago I chopped up the stock '57 bracket by moving the rear tab towards the front. A friend (who welds) and I mounted the alternator on a piece of all-thread using nuts and washers to...
Forum: Pontiac - Street 02-14-2024, 08:37 AM
Replies: 36
Views: 2,148
Posted By sdbob
My hard learned experience with 59 389 crank...

My hard learned experience with 59 389 crank shaft and 55 hydromatic. The 59 389 crank has a little extra material above where the stock 55 flywheel bolts on. However this extra material causes the...
Forum: Pontiac - Street 02-14-2024, 01:40 AM
Replies: 36
Views: 2,148
Posted By Jack Gifford
Glad to hear you'll be keeping the GMC...

Glad to hear you'll be keeping the GMC Pontiac-powered!
Although mine isn't a 389, the '58 car engine is now 382 c.i. (4.127" bore). So my truck is very similar to what you are building. I'm using a...
Forum: Pontiac - Street 02-13-2024, 08:34 PM
Replies: 36
Views: 2,148
Posted By Goatracer1
Everyone else has covered your engine. I'll...

Everyone else has covered your engine. I'll mention rear end choices. I built a 1961 Chevy PU with a 1965 389 , Turbo 400 and used the 3.08 that was in the car I got the 389 from. I welded the...
Forum: Pontiac - Street 02-13-2024, 06:54 PM
Replies: 36
Views: 2,148
Posted By Bill Hanlon
And as long as you are tearing into the '59...

And as long as you are tearing into the '59 engine, take a look at this https://www.pontiacsafari.com/L1Garage/FrontSealUpgrade.pdf
article I wrote about upgrading the front seal. If you decide to...
Forum: Pontiac - Street 02-13-2024, 06:48 PM
Replies: 36
Views: 2,148
Posted By Bill Hanlon
Make SURE that you read and understand the...

Make SURE that you read and understand the "interchangeability" section of Larry Gorden's page in the link below before you try to attach the '59 crankshaft to the HydraMatic's flywheel.
...
Forum: Pontiac - Street 02-13-2024, 06:43 PM
Replies: 36
Views: 2,148
Posted By 694.1
The only thing wrong with '59-'64 heads is it may...

The only thing wrong with '59-'64 heads is it may limit your intake choice a little.
Ideally, a 1960 timing cover which would retain the front mount but use a standard cooling config would be great...
Forum: Pontiac - Street 02-13-2024, 05:53 PM
Replies: 36
Views: 2,148
Posted By 1968GTO421
I had an Oldsmobile 55 years ago with that...

I had an Oldsmobile 55 years ago with that Hydramatic and an Olds 371 CI engine. I put an Isky E-2 camshaft (HFT) in that engine and it really woke it up in the lower/midrange RPM area. The...
Forum: Pontiac - Street 02-13-2024, 04:56 PM
Replies: 36
Views: 2,148
Posted By Tim Corcoran
If you want torque then I would get a stroker kit...

If you want torque then I would get a stroker kit with a 4.25 stroke...
Forum: Pontiac - Street 09-30-2013, 10:41 AM
Replies: 21
Views: 2,205
Posted By PunchT37
Iv`e never had a problem with a rope seal that I...

Iv`e never had a problem with a rope seal that I installed. Even, the Buick that has a rope seal in the rear AND the front. Soak them in oil and pack them in good in the groove. Cut them about 1/16...
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