2.5 Iron Duke GM Engine. Just for fun, lets stroke and modify it - then put it on the Engine Dyno!

[89Suburban]

Very few engines I salute from my years of vehicle owning, Iron Duke Tech 4 is still in the top 5.

 

[Tonyrodz]

That had to be a turtle, man we live in the good old days now!

It def was. Had ac, 3.73's and was an auto.

 

[iamdub]

Those were great little commuter engines and I think Shamrock boats also ran them. How about a Quad 4 next time? Those were awesome!

Speaking of, the one in that vid had a marine crank.

 

[Kenneth L Nielsen]

Speaking of, the one in that vid had a marine crank.

Indeed- that is what bumps it up to about 3 liters.

 

[swathdiver]

My sister had a Quad 4 in a Olds Cabriolet? I think?

My brother had an '88 camaro, but it had the 2.8 v6

Probably a Cutlass Ciera or Calais. The Calais were smaller and had the Quad 4 back in '88.

Those 2.8s in like the Pontiac 6000 or something sounded awesome.

 

[Jimmyy]

I had 4 Calais 2 with the 2.5 and 2 with the Quad 4. All though faster I hated the Quad 4. They had head gasket issues. My 86 2.5 sounded like a diesel from 86k to 260k.

 

[Kenneth L Nielsen]

I had 4 Calais 2 with the 2.5 and 2 with the Quad 4. All though faster I hated the Quad 4. They had head gasket issues. My 86 2.5 sounded like a diesel from 86k to 260k.

My dad had a cutlas ciera and yep- sounded like a diesel as well at times... Low end grunt like one too.