Small block mains

**TexasLS1** · 02-15-2009, 11:00 PM

Anybody know if a '91 Suburban (350ci) would have 2 or 4 bolt mains? I'm sure I'll have to look at the block number to find out for sure. If it were to be 2-bolt, at around how much power would I need to add a stud girdle? Or should I just forget about using bolts and use studs/nuts? Forgive me, it's not an LS1!! Thanks for any help....

**JoshieDoom** · 02-16-2009, 12:33 AM

Originally Posted by TexasLS1

Anybody know if a '91 Suburban (350ci) would have 2 or 4 bolt mains? I'm sure I'll have to look at the block number to find out for sure. If it were to be 2-bolt, at around how much power would I need to add a stud girdle? Or should I just forget about using bolts and use studs/nuts? Forgive me, it's not an LS1!! Thanks for any help....

2 bolt

**bigrondownhiller** · 02-16-2009, 12:29 PM

What are your plans for the engine?

**TexasLS1** · 02-16-2009, 09:15 PM

Originally Posted by bigrondownhiller

What are your plans for the engine?

Nothing too drastic, but still want it to be respectable, probably around 400hp. All depends on money, though. I would like to put it in a '70 - '72 Camaro or '69 - '72 Pickup. I figure it would really have to be wild before requiring a girdle, but just got curious as to when it would be a must. Wish it was a 4 bolt.

Or a 6 bolt LS1.