[Jay S]

So this is a hypothetical question. Which I think was the original intent for Paul starting this thread because he runs into this all the time.

Your engine builder gives you 3 options, 600 HP street and strip Pontiac engine. Your on a budget. Which one do you choose?

1. A stock seasoned PMD 4.21 N crank, light weight internals, lightest of the 3 combos, H beams, stock type, slightly better “high performance” harmonic balancer.

2. A stock seasoned PMD 4.21 N crank, same pistons but heavier and cheaper I beam rods, very nice ATI race type harmonic balancer. H beams are swapped for I beam to upgrade the for the better balancer.

3. A new 4.21” 4340 crank, stock type dampener reused from the customers engine. It looks good, but it is 50 years old. I beams rods, a slightly heavier cheaper pistons because the crank ate up you budget!

Ah yes….this is how I end up with parts for 2 engines when we only intended to build 1, cause I changed my mind mid build…Lol

[PAUL K]

Originally Posted by Jay S

So this is a hypothetical question. Which I think was the original intent for Paul starting this thread because he runs into this all the time.

Your engine builder gives you 3 options, 600 HP street and strip Pontiac engine. Your on a budget. Which one do you choose?

1. A stock seasoned PMD 4.21 N crank, light weight internals, lightest of the 3 combos, H beams, stock type, slightly better “high performance” harmonic balancer.

2. A stock seasoned PMD 4.21 N crank, same pistons but heavier and cheaper I beam rods, very nice ATI race type harmonic balancer. H beams are swapped for I beam to upgrade the for the better balancer.

3. A new 4.21” 4340 crank, stock type dampener reused from the customers engine. It looks good, but it is 50 years old. I beams rods, a slightly heavier cheaper pistons because the crank ate up you budget!

Ah yes….this is how I end up with parts for 2 engines when we only intended to build 1, cause I changed my mind mid build…Lol

Can I phone a friend