Starter Replacement and Cooling System Adjustments
 

After several years of fighting the heat soak starter issue and years of research, I finally went the route of buying a 1998 Tahoe Starter (AC Delco 337-1022) from Rock Auto. Shout out to all those that have posted about what starter to use. I admit that I was a bit apprehensive, especially after I opened the box. It did require me to purchase longer bolts, but fortunately O'Reilly's had a few in stock. Overall it bolted right up, did not require any shimming and no friends had to be used to hold the thing in place.

Also while messing around, I figured it was time to adjust my electric fans on / off temperatures. Low an behold, I realized that the fan controller had leads that I could hook up to the Sniper. Took a bit to route the wires cleanly and figure out the secret location in the Sniper settings to set things up, but got it done.

With all them projects done, took it out for a test ride to get some serious heat under the hood. Made a few stops along the way and she fired right up each time. Man I love this forum.

Re: Starter Replacement and Cooling System Adjustments
 

A couple of years ago, I replaced my 69's full-size starter with an AC Delco #337-1022 permanent magnet starter. I absolutely love that thing! And the packaging and documentation were first rate.

Not sure which GM vehicles mine was meant for, but it works just fine on my one-piece main seal 350 block with 168-tooth flexplate. I swear, compared to the big starter, this thing spins the engine over like the spark plugs are removed!

I also had to buy the proper knurled bolts. It's VERY important to use them.

Re: Starter Replacement and Cooling System Adjustments
 

The first time I installed one of the small 1994-99 Chevy truck starters I was skeptical it would crank a low compression small block much less a high compression 454. The 454 was in a 1958 Impala which had the typical heat soak starter problem.

That little permanent magnet gear reduction starter cranked the 454 faster than the old HD starter ever did and completely solved the heat soaked starter issue.

Re: Starter Replacement and Cooling System Adjustments
 

Have 4 of them.
2 big block trucks 2 sbc trucks

Re: Starter Replacement and Cooling System Adjustments
 

Found this post on a search and need a new starter for my basic 350.

Anyone happen to have a link or part numbers for the correct bolts?

Thank you

Re: Starter Replacement and Cooling System Adjustments
 

The proper bolts may depend on the starter. When I got my permanent magnet starter from AC Delco, it included documentation about the correct bolts, including drawings and part numbers.

Bolts specified for my 336-1901A starter are GM# 12338064. They are knurled just above the threads and are a very tight fit with the starter holes. The idea is to keep the starter from moving relative to the block.

These are what I used. You should google your starter P/N to see if you can find the correct bolts.

https://parts.gmparts.com/product/gm...-bolt-12338064

Re: Starter Replacement and Cooling System Adjustments
 

awesome thank you

Re: Starter Replacement and Cooling System Adjustments
 

I bought my gear reduction starter at a local speed shop many years before I learned about the Delco starters. Buy once, cry once, I guess. I can't complain, it's been spinning the engine for years without fail, even if I shut it off and the water temp was 260°. I have since cured that problem, which it had the entire time my FiL owned it.

Re: Starter Replacement and Cooling System Adjustments
 

I’ve got one on my K20 very good upgrade. Of course I had to change the bell housing to run it but I was doing that anyway for the hydraulic clutch.