V-6 gas engine that was built by an American automobile company (Ford,Dodge, GM, etc.) size and company?

I'm going to guess the 478 that was used in heavy duty 1960's GMCs.

Probably. In modern times, I'd say Ford's 4.0L.

I think WMJ has it, tho GMC also had a 305 CI V-6 (5.0L) in the '60s.

Probably. In modern times, I'd say Ford's 4.0L.

I think Ford has a 4.2L in the Freestar don't they?

I think Ford has a 4.2L in the Freestar don't they?

Yes..I didn't realize the Freestar was still in production..

Yes..I didn't realize the Freestar was still in production..

It's not, but the F-Series uses it. GM has a 4.3L V6 in trucks.

Here is an interesting link.

A massive 478.

WMJ is correct.

http://en.wikipedia.org/wiki/GMC_V6_engine

Edited March 22, 200718 yr by smallchevy

It's not, but the F-Series uses it. GM has a 4.3L V6 in trucks.

Ahh, yeah..forgot about the 4.3.

Cool question. Those 7.8 liter V6s are insane.

High torque, low rpm operating engines. International has some Ginormous ones too.