BUILD THREAD 1987 Olds 442 Project Build

Canon_Mutant

Royal Smart Person
Aug 15, 2015
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Ah, found another dormant brain cell . . . sorry Hutch but it is going on 13 years now since the build.

I made custom baffles for my covers due to pcv oil suck with the stock baffle and also went with dual pcv valves. Was sucking in oil so I made and brazed on the same shallow baffles that extend clear to the very end of both valve covers, then had them blasted and chromed. I pull in the air from both ends back to the center and then out => no more oil suck. I also had an off idle ~ light throttle hesitation, more akin to turbo lag on a turbocharged engine, that was due to the single pcv valve opening just a bit too soon combined with ECM confusion over the extra cubes and bigger cam. So, I take filtered air clear down into the crankcase through the oil tube and then evacuate both valve covers. The two pcvs in parallel require just a bit more rpm to pop them both open so the light throttle hesitation problem was solved and, I might add, it does a more efficient job of evacuating the engine by taking clean air clear down into the crankcase and then up both sides [look at the pcv intake side of a high mileage motor ~ solid gunk]. Of course, at the rate I'm NOT getting it back together, I may never get this motor to "high mileage" but . . . details!

If someone can provide the underside view of the factory baffles on stock covers, I will go pop my DS cover back off and snap a pic?
 
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fleming442

Captain Tenneal
Dec 26, 2013
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Hutch can take pics when he gets them; they're already boxed up.

My 468 has so much crankcase pressure I had to remove the PCV. It still pushes the "top hat" oil fill cap up with breathers in both covers. Don't ask; it's a sore subject.
 

oldsofb

Royal Smart Person
Supporting Member
Dec 7, 2007
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Maryland
I think you need to dimple the baffles for the polylocks.
Hutch, I'll get them out in a day or 2.

Thank you. How great is it that yesterday I said "I think I'm gonna get a set" and today they're ready to ship. I LOVE THIS FORUM!!!

Hutch
 
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Canon_Mutant

Royal Smart Person
Aug 15, 2015
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Oh, another brain cell woke up, and I think it might be just 90 prior to #1TDC when that far back valve is wide open. It's been a while . . . 180 is probably close enough to get the valve cover to slide by though. Doesn't need much.
 
Oct 14, 2008
8,819
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Melville,Saskatchewan
I wonder if Harland made Comp's? I don't have a pic in the package but they look awfully familiar minus the color. Comp has gone to the gold color too though. Excuse my filthy motor. It has needed a bath for [now] OVER 3 years.

View attachment 96569
Pretty sure the owner of Scorpion claimed they made nearly all the US made aluminum roller rockers on the market.
 
Oct 14, 2008
8,819
7,765
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Melville,Saskatchewan
I do love the cool factor. I have seriously considered the dual quad with dual Street Demon carbs. Dual Edelbrock carbs scare me and the Offy intake is a terrible design. The rarer Edelbrock 065 dual quad is a better intake. With the big block there probably isn't enough clearance for 1" Phenolic spacers, otherwise with the Edelbrock/Carter hot start issues it is a good idea. The wheels look awesome by the way.
 

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