Posted By: ragtop
Symmetrical bolt Forged Damper: What years sm. Block? - 06/26/23 10:51 PM
What year Sm. Blocks used symmetrical bolt pattern Forged Damper? Thanks.
Symmetrical bolt Forged Damper: What years sm. Block?
Posted By: Cab_Burge
Re: Symmetrical bolt Forged Damper: What years sm. Block? - 06/26/23 11:23 PM
!972 or 1973 
Same year on the B/RB and SB
Same year on the B/RB and SB
Posted By: John_Kunkel
Re: Symmetrical bolt Forged Damper: What years sm. Block? - 06/27/23 04:51 PM
'72 was the first year for the symmetrical bolt pattern on all engines. Early '72 340 or any 318 had neutral balance dampers.