[Scarebird]

I wondered what could have been the next true Pontiac engine:

Imagine a 301T block with 3.375 stroke crank and 4.5 bore (366 cubes, a sweet spot according to Russ Gee). Round port aluminum heads with efficient heart-shaped combustion chambers, fuel injection (batch fire in the 80's) and coil packs (84-87 GN).

Would have easily fit in a Firebird or Grand Prix. Not sure how a short stroke work work emissions-wise...

[Tom Vaught]

Originally Posted by Scarebird

I wondered what could have been the next true Pontiac engine:

Imagine a 301T block with 3.375 stroke crank and 4.5 bore (366 cubes, a sweet spot according to Russ Gee). Round port aluminum heads with efficient heart-shaped combustion chambers, fuel injection (batch fire in the 80's) and coil packs (84-87 GN).

Would have easily fit in a Firebird or Grand Prix. Not sure how a short stroke work work emissions-wise...

Think your math is off a bit there Scarebird.
Using wallace's calculator:

A 3.375 stroke and a 4.5" bore is 429 cid vs your 366 cid number.

Maybe a fat finger there by you.

A 3.375 stroke and a 4.151 bore is 365.22 cid.

I have sold at least 12 of those 366 forged (Kellogg cranks) to Pontiac people over the years that were finished machined by Whitey at Moldex Crankshaft. I sent a forged core to Tom S, but have no idea what he did with it.

Rodney Butler ran two of the cranks in his IA-1 Block many years ago that was about 440 cid. He killed the first one getting a bit greedy
on the cid size.

Tom V.

[Scarebird]

You are correct - work hands =/= typing hands!

How did they run in non-OEM hands?