Thought everyone would enjoy our latest wed night project. The engine had just been laying there and one of the guys wanted to "build it up" . The engine was actually given to us by a Terre Haute Hamber and he even delivered it for gas money. Thanks Bill. The engine is a later model 250 six based on egr intake and air ports in the cylinder head. Dis***embly shows very little wear anywhere and rods and main bearings looked great. Our goal was to build it as much old school as posible and be cost effective with a minor budget. Engine was taken apart and inspected and delivered to a area machine shop for cleaning, crankshaft polishing and check and valve job etc. All parts was stored for cleaning and inspection and block and cylinder head was returned to shop the following week for the wed get together. All parts were degreased and bead blaster, primered and gasket set was purchased. Block prep including painting inside with GE Gyptal paint for protection and better oil flow etc. A phone call ws made to friend Tom langdon at www.stoveboltengineco.com for some parts. Tom had a home made ( nice one) split manifold, a pair of alum side panels and a new marine camshaft. I had used the marine 450 lift cam before and it really wakes up a six. Camshaft was installed with the new gear set, and the old gear pulled off with a puller pretty easy and the new one was set using only some very hot water to heat the new gear etc. The balancer was damaged and needed a balancer sleeve to bring it back to new shape. Nice product !!!! Crankshaft, new bearings, pistons and rings were installed next. Cylinders were in great condition and we applied a ligh ball hone job with trans fluid to get a nice hatch job for the cast rings to seal. New camshaft is coated with high pressure lith lube for break-in and all pistons and rings are in with all bearing checked and torqued. Engine turns over pretty easy with large screwdriver in front pulley. Wanting the old school ( and different ) look we took the cast intake to the shop next door and had a boss milled on each runner for a pair of the "****ster27s' gl*** bowled holley one barrel i had been saving for a project. The intake will use a block off plate on the old carb mount and the twin gl*** bowl one barrells shoud look and work really good. I bought a mallory on ebay for $46 and ran it on our distributor nachine and added it for not only performance bit the overall look. Red speedway wire was used along with a wirth oil filter cover etc. The stovebolt side covers look pretty cool as well. Engine was then primed and taped up for a coat of paint. I have been using one shot enamel with a hardner and closs enhancer for my last few engines and they all look pretty good. And there it is after paint! Almost ready to run , more as we get the carbs, prim it with oil, adjust the valves, timing etc and get the carbs on the engine. Any ideas for a really cool air cleaner ???? Thanks to the wed night crew!!!!
Bubba....What's that Mallory distributor ? I have a friend building a Chev 250 and he has a Double Life Mallory YC 476 HP and he needs information on that thing....point gap, advance curve, etc.
I love those carbs, any idea where I can get a couple? I have a 235 layin around that I wanna build up, just for the fun of it.
Wow - looks great! That is the same motor thats in my '69 C-10... I'm guessing that it's from a 77 or so pickup from the smog ****. - Joe
Looking really fine there! Nice pics and write-up as well! You need to put that in a roadster and go have some fun!
kewl write up...well done and from experiance its a good idea to add those little short peices of exhaust pipes.
Another trick on the 250 motor is to use ( if you can find one ) the head off a 194 cubic in. It has smaller combustion chambers.
POINT GAP HITS THE SETTING AT .020 EACH SET. ADVANCE CURVE IS ALL IN AT 2500 RPM, 12 DEGREES CAMSHAFT=24 DEGREES MECHANICAL.
thats a nice split manifold, anyone know what the rear donut holder was taken off of? my plan for an intake is to take the bases from some old single carbs, flip them upside down and weld them to my intake. are 194 and 250 carbs the same, i know that 292 carbs are larger.
No it sitting on a stand in the shop. Looks like its going in a 23 Model T Touring street rod. Pics soon.......
Nicely done Mine could use that. Were you thinking of porting and polishing the engine?? Any one do this can you feel a difference. I would like to see the way you fab the engine brackets for the 30's rails . I am missing a pulley and fan on the front does any one know what years/models fit this 250gmc
I have the orginal engine mounts and frame brackets from the vehicle the engine came out of. That will cover the front mounts very well i think. I have the orginal bellhousing and thanks to a fellow hamb-er i also have the cross member from the vehicle as well. We are using a hot rod model T frame made from 1 1/2 x 3 rectangular steel. I think this will greatly simplfie the install ( famous last words). On your pulley issue most of the small block pullys etc willl work.
mink how many do you want?(pully & Fans) LOL I port those heads all the time.As to how difference you would feel if any on a stock motor Not sure.
My dad ported and polished a Ford L6 and it made a noticeable difference. He did it when I was a teenager... maybe that is what started my love affair with the L6 (I have a 250 Chevy, 2 - 225 Mopar and a 223 Ford) - Joe
The engine looks great. I want to paint my 292 black also. Can you tell me what you used on yours (what primer, paint, gloss enhancer, etc)? Thanks.
I know this an older post but I was wondering how the "homemade" dual carb intake worked out. Very cool. Nice to see homemade parts! Todd
we have built several 250 sixes you can remove the head bolt boss from the intake ports with a sawzall or hacksaw.cut at top inside port and also at bottom . then polish and use really short bolt inside port on bottom side ,for the old bolt hole on the top use a small freeze plug to seal it . it will really breath then.
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