Need Chevy inline 6 build advice.

[Ayers Garage]

This is likely a little off topic.

I need advice on building up my 292 engine. I have read Santucci's 6 cyinder power manual several times, but he's a little vague in a street, hi-torque buildup like my 1 ton pickup needs.

I already have a set of headers and an HEI for it.

I'm going to use Propane pistons to get the compression up to 9 to 1 or so. And, I'll use a 4 bbl intake with a little 4 bbl carb.

What pointers can you guys give me? Cam selection? Poor man's headwork? Tips to make a smooth driver out of it?

I can't really get into lump port heads and big oversize valves and seats and stuff. Basically, I can afford a simple rebuild with some neat parts along the way.

I appreciate any input fellows.

[RileyRacing]

For the street, keep the cam kinda small, unless you have a good converter or have deep gears. Assuming you're running a slushbox. If you're running a stick, be a bad dog... http://www.jalopyjournal.com/ubbthreads/images/graemlins/grin.gif

What kinda car, gears, tranny, etc. That'll help to get ya some specific advise.

Glad to see ya wanna build a six. The world needs more people like you. http://www.jalopyjournal.com/ubbthreads/images/graemlins/grin.gif

Ok, I see it's a one ton now, so what year, weight, etc. http://www.jalopyjournal.com/ubbthreads/images/graemlins/crazy.gif It's been a 6 or more beer night...

Jay

[flynj1]

I like to see sixes run. I ran a 250 cheby six in a vintage dirt coupe a few years ago and had a ball with it. It was a stock 250 with a cam headers and 4bl intake with a 500 holley thats it. That thing was killing small blocks. Good luck and have some fun

[Kinky6]

Call Tom Langdon, 586-739-9601. He's a retired GM driveline engineer, and past president of Inliners. Give him as much specific info about your project - weight, use, gearing - and he can supply you with a cam and other engine parts.

If anyone has a copy of the "Gasser Wars" book, there is a picture of Tom near the front of the book driving his gasser, The Hole Shot 6. Used to run a Poncho OHC 6 in it.

Later, Kinky6 http://www.jalopyjournal.com/ubbthreads/images/graemlins/cool.gif

[Ayers Garage]

It will be a 1 ton dually with 4:11 gears and 31 inch tall dually tires. Turbo 400 transmission.

I'm actually pulling the 454 out of this thing to go 6 cylinder. 454 needs help and the mileage isn't worth the power that I don't ever need. I'm hoping to improve the mileage at least 2 or 3 mpg over what I'm getting now.

This engine came out of my father-in-law's C60 dump truck, which he used to haul dirt AND pull a backhoe. He assures me the little engine didn't really strain too badly under even that load.

I'm hoping the headers, HEI, and better intake/ carb will improve the mileage and power over what it had stock in the dumptruck.

[Crosley]

Most likely the 6 will eat more fuel than the big block in town, mayb even with the big block on the highway

[Ayers Garage]

You really think an efficient 292 cubic inch engine will get comparable mileage to a 454?

I know that stock 292's are known for poor economy.

I believe that as long as I keep the carb, cam, and exhaust mild, the engine should be more efficient than stock.

I mean, it's a 292 cubic inch engine.

[Kev Nemo]

Hey-I want to get rid of my 235 inline and go up to a 454-wanna trade? I'm totally serious-pm me and we could work this out. It has 70k original-3sp trans, leaky mainseal, but we can replace that when we pull it out http://www.jalopyjournal.com/ubbthreads/images/graemlins/grin.gif

[Ayers Garage]

[ QUOTE ]
Hey-I want to get rid of my 235 inline and go up to a 454-wanna trade? I'm totally serious-pm me and we could work this out. It has 70k original-3sp trans, leaky mainseal, but we can replace that when we pull it out http://www.jalopyjournal.com/ubbthreads/images/graemlins/grin.gif

[/ QUOTE ]

Sorry dude, I have given away every 235 I've ever had.

The 194, 230,250, 292 type of engines is way removed from the 235 type of engine.

Besides, have you priced a 454 lately? A core is worth pretty big coin.

[hollywud]

Sorry to Hijack.But are a Chevy 250 and a pontiac 250 close to the same?