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Went to my local machine shop to hang around. Here is an engine you don't see very often. It is a 1962 Tempest 4-cylinder block. A customer dropped off the engine for rebuild. You can see the bank of cylinders on the left, the distributor hole at the rear, and the right side is cast flat with no cylinders.

I had assumed that being only 1/2 of a 389CI, that it shared many of the same parts like the cam, heads, timing set-up. I learned differently. Although it is 1/2 of a 389CI, it is unique to itself and quite different from a 389. It has its own designed crank with larger counterweights, uses its own design cam & heads and even a different head gasket.

My machinist was pricing this rebuild out for the customer when I went there. Thought others might appreciate seeing what one of these blocks looks like. :thumbsup:

Here is an article for your reading - https://stevemckelvie.wordpress.com/2012/07/20/the-1962-pontiac-tempest-a-car-with-half-of-an-engine/
 

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Yes they are another interesting exercise in design from Pontiac.
I love the odd stuff! I put this '63 Tempest with 4cyl back together several years ago and she still rolling along :)
 

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I worked on a few of these in the early '80's when customers were still using them as daily drivers. They had no oil filter, IIRC. They also ran really well, with a ton of low end torque. Micky Thopson or Smokey Yunick (I can't remember) built one up to 275 HP back in the day, and it was a real screamer in the light little Tempest. I haven't seen one in 35 years............
 

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Same oil filer set up like V8. Cool, underappreciated little engines.

I'm heading down to Austin in a few weeks to reunite and cruise around in the Ol '63 :)
Neat little cars with their rope driveshaft and rear transaxle. I vividly remember the black one my buddy at work drove when I was about 17. We guys thought it might be funny if we lifted the back of the car up and slip it a little sideways. I looked back at the car and noticed the wheels were bent inward - man did I feel a panic coming on thinking "aw crap, I broke the car and how am I going to explain that one." I didn't know the transaxle was of the independent suspension design, but I learned that day.

Also learned at the same job goofing around that you don't use Dad's old screw style A-frame bumper jack on the bumper of a 1973 Mercury Capri to get it up in the air to set the rear axle on blocks so the tires don't touch the ground. Those European cars use the rocker panel and scissor type jack to change a tire. I had to buy a new bumper for my fellow worker because it got pretty bent up with the weight of the Capri hanging on it. Just a few lessons learned from what were thought to be innocent pranks. :smilielol:
 
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