Building New Engine

[buickgn87]

109 3.8L

My pistons specify they are for a 5.960" connecting rod.

I have a set of connecting rods that are 5.970"

Can I run these?...I'm assuming the engine will have slightly higher compression ratio.

Thanks,
Jason

 

[mikestertwo]

I don't see why not. As long as you have enough deck height and the piston doesn't come out of the hole at TDC you should be ok.

 

[dr_frankenstein]

are these rods actual buick rods? or are these a set of SBC rods?

A.j.

 

[buickgn87]

are these rods actual buick rods? or are these a set of SBC rods?

A.j.

Yes, SCAT 4340 H Beam - Mfg part #: 2-3.8-5970-2249-940

Pistons are PROBE 14477-030

 

[jasjamz]

Mine came out to 8.5: with cometics, same rods diamond off the shelf pistons, and iron heads the were milled for straightness. Should be fine.

 

[buickgn87]

Ok thanks guys. I just wanted to make sure before I started assembly. If anyone else has input please post.

Thanks.