Easy lifehacks

Can a cylinder head be cut in an Oldsmobile?

Can a cylinder head be cut in an Oldsmobile?

O-rings can be installed in the head or the block, but preferably in the cylinder head. Milling cylinder heads for increased compression is a relatively easy operation because Oldsmobile cylinder heads are square and can easily be cut without any special fixturing.

Where is the casting number on an Oldsmobile?

The 4 or 6 digit casting number is found around the center exhaust side rocker arm cover bolt or among the rockers on really early heads [pre-68]. Really late heads have #’s like 4417 or such, they might be out closer to the top of the exhaust port.

What do the heads on an Oldsmobile look like?

Looks like it was a plate screwed to the head mold – the screw heads are visible. Generally, heads with valve rotators and corresponding deep spring pockets (3/8″ wide retainer rather than 1/8″ retainer), have induction hardened exhaust seats from the factory.

What is the smog head on an Oldsmobile?

‘Smog heads’, restrictive exhaust valve pockets. No big valve units. K** 455 80 413191 Ka** ’73 – ’76 455 80 413191 Marine, irrigation, industrial, W-30/Toro, 442 4-speed replacement head.

O-rings can be installed in the head or the block, but preferably in the cylinder head. Milling cylinder heads for increased compression is a relatively easy operation because Oldsmobile cylinder heads are square and can easily be cut without any special fixturing.

What kind of distributor does a 350 Oldsmobile use?

Your 350 Olds engine uses the same size distributor as HEI used in the 307, 350, 403, 455 engines. It’s a drop in swap. You don’t even have to pull the intake manifold. Find a HEI distributor at the salvage yard for one of the above engines and drop it in. Ok, I’ve assumed you’ve pulled a distributor and put it back in and can re-establish timing.

The 4 or 6 digit casting number is found around the center exhaust side rocker arm cover bolt or among the rockers on really early heads [pre-68]. Really late heads have #’s like 4417 or such, they might be out closer to the top of the exhaust port.

Looks like it was a plate screwed to the head mold – the screw heads are visible. Generally, heads with valve rotators and corresponding deep spring pockets (3/8″ wide retainer rather than 1/8″ retainer), have induction hardened exhaust seats from the factory.

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Ruth Doyle