4 cylinder OHV Plymouth engine, or???

[71Newp]

I was not really sure where to post this. My Brother-in-law sent me this link, He collects/restores this vintage Jeep and has never seen anything like this engine in a Jeep. Please note the distributor cap from an 8 cylinder engine! A Plymouth "Slant 4"???

1942 Ford Jeep

From the ad... "Great Fun! Has been in the family over 40 years. It runs, has full roll bar, front and back towing. 2 sets of tires and rims. It has been kept in storage. My father told me it was a 4 cylinder plymouth engine."

 

[Big_John]

Ummm... That's a Pontiac engine. It was based on the 389 engine.

They used them in the early sixties Pontiac Tempest.

 

[Big_John]

1961-1963 Pontiac Tempest

 

[70bigblockdodge]

My mother had one of those as her first car out of college. My dad traded it after they got married, on a repo corvair. He was in the bank side of the repo business then.
He would still claim till he died that it was the worst car ever and vibrated very bad.
He said it was because my mother had run it too hard between Maryland and Tennessee, knowing my mom I could agree. She probably really stressed that rope driveshaft.

 

[patrick66]

There is also a Slant 4 International Harvester engine, which is half of a 345 or a 392 V8. Used in Scouts and other applications for many years.

 

[CBODY67]

I knew about the 1/2 a V-8 in the Pontiac, but not the others. But then back then, if it didn't have 8 cylinders, it really didn't matter.

The other side of these "variations" was when GMC took two of their early-60s V-6s and grafted two of them together to make a V-12 our of them, with a common crankshaft and two distributors. YouTube videos do exist! The GMC V-6 was "truck-rated", in up to about 350cid and generally used a small 2bbl carb. All about "pulling the load" than high performance.

CBODY67

 

[twostick]

I knew about the 1/2 a V-8 in the Pontiac, but not the others. But then back then, if it didn't have 8 cylinders, it really didn't matter.

The other side of these "variations" was when GMC took two of their early-60s V-6s and grafted two of them together to make a V-12 our of them, with a common crankshaft and two distributors. YouTube videos do exist! The GMC V-6 was "truck-rated", in up to about 350cid and generally used a small 2bbl carb. All about "pulling the load" than high performance.

CBODY67

That V6 was available in 305 for pickup trucks and 351 and 401 for big trucks.

The V12 was the same bore and stroke as the 351 for 702 cubic inches. Most people think it was a siamese block but in fact it was a single casting with 4 V6 cylinder heads.

Kevin

 

[Polara_500]

That 305 V6 pulled pretty dang well for it's size and knocked down some decent mileage numbers too. I got near 20 mpg in a 60 GMC 1/2 ton when I was stuck driving it back and forth to school. Slowly returning to the earth now..

 

[71Newp]

Thanks to everyone for the info. I wonder if the Jeep owner used a 389 distributor cap and plugged every other opening??