#third

iTrader: (1)

I'm in the process of building a 10.5-1 LQ4. What starter do you guys/gals recommend? Is anyone running the factory starter with a higher compression ratio? Thanks

JoeNova

You do realize that there are factory LS engines with more than 10.5:1 compression, right?

GtoProject

iTrader: (2)

Factory starter, almost 200,000 miles. I had a setup going a little over 12:1 for a year or two and its still going strong with the current 10.5:1 setup. The stock or stock equivalent should be just fine

pozesd99'

iTrader: (3)

Stock starter on my 11.7:1 stroker. Does just fine

Orange Juice

iTrader: (3)

I'm on a stock starter, I was given a high output aftermarket starter but it wouldn't fit with headers which is why I had been given it.

Nathaninwa

Most of the time cylinder pressure is bleed off with a proper cam for a high compression setup. Even a 9-1 motor can have more cranking pressure than a 12-1 setup

That said, I wanted the baddest starter I could find. Bought a power master unit. Didn't take long for the solenoid to wear out and click click click in the staging lanes. Fixed it twice before buying a stock ac delco. Never had an issue sens

Luckily, summit returned the starter for full credit

Cobranut1

My starter just broke. Turns out it has a PLASTIC ring gear in the planetary.
It was an LS1 style starter on a 427 stroker LS3.
I believe it was a cheap knockoff instead of a factory starter.
Has anyone had an AC Delco starter apart to see if it uses plastic components inside?
I can't use an offset reduction starter due to header clearance, but before I buy an AC Delco unit, I'd like to confirm that it's higher quality than what the previous owner installed.

Thanks,
David

01ssreda4

iTrader: (96)

6.0 truck starter with the bigger flange.

Jimbo1367

Many use 2010-2015 F-body. auto or manual. This use a pigtail to trigger. it's not simple a stud. Try looking it up for a pic.

With that said, I recently seen a thread showing a 07 Silverado is the shortest OEM starter. Should be a ton of these in salvage yards.

Cobranut1

Thanks guys,
I ordered a new AC/Delco unit and the longer bolts for the 2010 from Rockauto.
My Megasquirt harness already included the new connector, so I'll just have to splice it back on.
Hopefully this one lasts.

99 Black Bird T/A

iTrader: (4)

Stock factory LS1 starter on 99 TA, 155,000 miles no issues, 10.8 to 1 compression with 5.3 heads. Stock LS1 starter on LS1 383 in RS with 5,000 miles no issues, 11.3 to 1 compression.

1970camaroRS

iTrader: (8)

Summit racing starter so I could clock it to clear big headers.

Detoxx03

iTrader: (14)

Always ran the stock one.

sjsingle1

iTrader: (1)

MSD....it has the longer bolts like the truck starter

at least get the truck starter to avoid the infamous broken tab on the block due to unequal bolt lengths

Cobranut1

Was the problem that the short tab on the starter would break, and put all the stress on the outer block tab until it breaks as well? That short bolt didn't really make any sense to me from the first time I saw it.

The 2010-up starter I ordered uses 2 long bolts as well.
This is in an RX-7, and I wasn't sure if the truck starter might be larger diameter, which could be a problem with my headers. Length is fine, as long as it clears my C5 Vette mounts.

Thanks for all the input.