S-10 Again. No spark....

The Chevy 292 is good straight six, heavier duty than its little 250 brother (there was also a 230 and a 194?) in same family. The four cylinder 153 sold in 1960s also was part of this family. Unfortunately few pickups ever saw a 292, it was mostly sold in commercial market. Chevy pickup buyers tended to buy the small block V8 or go for base 230/250 engine. The 292-6 and 366 big block V8 were much longer lasting engines and favored in commercial market. Dont think 366 was even ever offered in pickup since it would be competeing with the small blocks.

None of the older American made straight sixes sold in USA had crossflow head. As I mentioned Ford developed an aluminum cross flow for the 200/250 sold in Australia and South America as those engines were offered for years there after they were dropped here. There is a guy importing them for those restoring old six cylinder Falcons/Mustangs that want bit more high end power. Its a bolt on deal and unlike original heads, these have intake manifold that bolts on instead of being cast as part of the head. Not cheap and I think for most people, a good machine shop could bump up compression and get original head to flow bit better for lot less money.

I havent even seen one of the newer GM I-6 or I-5. But figure its like most modern engineering monstrosities and not shade tree friendly. Also probably more like a BMW I-6 and built for rpm not low end torque.

__________________
"What would you do with a brain if you had one?" -Dorothy

"Well, then ignore what I have to say and go with what works for you." -Eliot Coleman

Yea, that was the OHC head Pontiac made for the Chev 250. Never had chance to drive one. Quite bit horsepower but think they had some issues. Also it made the six competitive with small block V8 and GM corporate probably didnt want that. They wanted to keep the six as a base low buck "entry level" engine in their marketing. GM really had some creative engineering ideas in 1960s that found their way into production though they didnt last long as the engineering depts apparently didnt ever talk to the marketing departments....

__________________
"What would you do with a brain if you had one?" -Dorothy

"Well, then ignore what I have to say and go with what works for you." -Eliot Coleman

1 bolt and the steering shaft is out of the way if you don't have a socket that will work.

__________________
"Education is the ability to listen to almost anything without losing your temper or your self confidence"
Robert Frost

Beeman,

Does this apply to the S-10? Does this mean to unscrew that bolt completely and the shaft will swing out of the way?
I learn so much on HT!

Clove

The Trailblazer is an I-6 but an I-5 version was introduced w/ the canyon/colorado replacement for the S-10. It's been such a problem that the mini pickups are now sold w/ a smallblock; something GM resisted in over 20 years of producing the S-10 though there are a bunch of guys who did stiff v8s into them...

The one front half-shaft of the Trailblazer runs thru the oilpan...Good Old GM design engineers do it again! The GMC Envoy version fo the trailblazer added a V8 after it's first year...

Bolt at the steering box is a pinch bolt, coupling only goes on 1 way. You can remove it, slide the lower part of the column up enough and it moves out of the way of the #1 plug. This is on the newer body style S-10 PU and Blazers & Jimmys.

__________________
"Education is the ability to listen to almost anything without losing your temper or your self confidence"
Robert Frost