The Stovebolt Site Forums The Shop Area The HiPo Shop MNSmith's GMC 302 build

I might just let it ride for now.

Rope seal packed in, caps torqued back down. Gonna wait until I get the cam back in before I put the pan back on.

I'm working on a plan to machine away the rope seal groove on a GMC block and main cap and replace it with a 2 piece aluminum seal holder for a big block Chevy rubber seal. Then I'll turn the crankshaft seal area down to the diameter of a BBC crankshaft (about .050")

I look forward to the flushing out of this modification.

The old rope seal will deal with that pitting much better than a rubber seal would. Might seep a little with the rope, versus spewing with neoprene.

Cam is back. If we can get the oven turned off out here, I might get it in this weekend. Of course, I can always get up when it is 3-4 am. No wind, no heat, no bugs, and the critters are all heading for their sleeping spots. All except the coyotes looking for a cat or two to eat.

Cam is back in. Push rods and rocker rack back in with the towers torqued down. Front cover, damper and trigger are re-installed. Breakfast with the wife and then I'll set lash. I made a new side cover but need to stick it back in the mill to finesse a couple of spots. Maybe I'll even throw a quart or two or ten of oil in it. If it's not ready to run by the end of the day, tomorrow for sure. I'll get some pictures later. Maybe even some video of it running, if all goes well!

I'm following this build with a great deal of interest- - - -I contacted your cam grinder with my idea of making my own cam cores, and got no response- - - -I'll bet he thinks I'm some kind of nutcase- - - - -which could be a distinct possibility, I suppose! LOL!
Jerry

He can take multiple tries by phone. I found he answers more often around 9-10 am Pacific time.

He also seemed more responsive by email.

Time to drop it on the wheels, top off the coolant, and give her a crank.

What is the device in the second picture with "Easy Grip" stamped on it? It appears to be in the hole where the no longer used distributor used to reside.

That's an expanding rubber plug, used as an oil filler cap. Lots of Diesel engines use the same item.

Been taking a break, chasing small leaks and other stuff. And by taking a break, I mean turn my attention to a 4-71 blown V6. That one is maybe a week away from firing up. After that, I'll have no excuse except to get back to the inline. Don't know why, but I haven't been interested snapping photos of any of this stuff. Might have to get back to that, too.

Wait - wouldn't a 71 series V6 be a 6V-71?

4-71 GMC blower on a 200 c.i. V6 gas engine.

AH! That blower looks bigger than the engine.

What is the heritage of the 200 c.i. six? Looks GM to me.

Chevy made a 200 cid V6 in the late 70s. They basically cut #3 and #6 cylinders off a 350.

I thought a 4.3 V6 (262) was a 350 less two cylinders.

John

That's the same engine.

The 200 became a 229 before it became a 262 in the 1980s.

Birth of the modern 90 degree V6.

For this one, I use the application of a '78-'79 Malibu. But most of the time, there won't be a parts listing. Using a 283 for parts search works much better.

Iskenderian cam made for 10 psi of boost. For a while, just finding the blower manifold was becoming a chore. Triple V belt drive by design.

Do we need to split this into another thread for your other interesting build?

Nope. We will speak of it no more. It is just another GM engine of many and not related to Stovebolts or trucks. It actually predates the inline. At least, the inline is directly truck related.

BTW, I need to find a little time to have a chat with you about the Haltech. I'll send you a PM when I have a chance.

Was finally able to find a minute or two. Third or fourth fireup. Building a little temp.

Congratulations! Sounds awesome Mark. Great job!

WOW! Big congrats Mark. Sounds really good!

Very nice.

I'll trade you my GMC 228 straight up. Leaks oil, needs a carb rebuild, has an HEI.

Is there a cover/air cleaner or something that goes over all those stacks to keep dirt and leaves and crap from going in?

When parked, paint mixing cups. So far, haven't found any screens that fit, so I'll have to make some.

Very nice, and sounds great.

John

That's amazing! Great work.