291 heads on L S 6's ?

**LITTLE TOMMIE** · #1 10-06-2003, 02:13 AM

is the block a 2 bolt or 4 bolt main [img]/ubbthreads/images/graemlins/confused.gif[/img]

DSYenko · #2 10-06-2003, 02:32 AM

I wish I knew!! The engine was sitting on the floor in the back of an old shop so there was no way to tell.It's all a guessing game,Im just trying to see if there is even any possibility at all that it's a LS 6. Are the 291 heads good heads or just ho hum?

**LITTLE TOMMIE** · #3 10-06-2003, 02:44 AM

3964291....69-70...rect..CLOSED..396, 402, 427, 454, 109cc chamber
Large or small hex spark
plugs used [img]/ubbthreads/images/graemlins/scholar.gif[/img]

DSYenko · #4 10-06-2003, 02:48 AM

Why did'nt you ask me that before I drove 3 hours 1 way to look at it !!!!!!!! [img]/ubbthreads/images/graemlins/no.gif[/img]

**Mr70** · #5 10-06-2003, 02:28 PM

You don't have to take off the oil pan to see if it has 2 or 4 bolt mains.Look at the area above the oil filter.
Look for two enlarged threaded outlets,to accept an external oil cooler.That would be a 4-bolt main block.

DSYenko · #6 10-07-2003, 02:51 AM

Thanks I remember seeing a oil pressure sender but cant remember if the rest is as you said or not.Thanks Duane

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