The 225 Buick V6 was offered as an option over 4 cylinder engine in 1966-1971 CJ5 and CJ6. Jeep used a heavier flywheel for increased torque and to dampen the vibrations stemming from the odd-fire design.. Home / Engine Rebuild Kits / BUICK / Buick / Jeep 225ci V6 Odd Fire Premium Master Engine Rebuild Kit, 1964-1971
An "odd fire" 90 degree V6 with shared crank pins will fire at 90-150-90-150-90-150 intervals. In order to make it an even firing engine, you have to split the crank pins to force the pistons to align with the cylinders at the correct time.. Buick 225 V6 odd-fire performance.. Jump to Latest 104K views 92 replies 28 participants last post by gte636p Jun 14, 2015 M