Where is the casting number on an Oldsmobile?
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.
How to tell if an olds Head is original?
For originality and number matching authentication, make sure your julian date codes fall before your car was produced. Look on your block to the pasenger side of the distributor for you block date. Then make sure your manifolds were cast within a few weeks of the block. [ Thanks to Tony Waldner for this information. Heads 1949 – 1964
Can a 1980 Oldsmobile engine be remanufactured?
Will replace 1980-84 307 Olds Original Olds R type Engine, Cadillac R or B. No A.I.R. pump, AT only No A.I.R. pump, specify Std or AT. Can use DO02, plug A.I.R. pump ! LOW ! PRICES For up-front payment total on a remanufactured long block exchange engine, add the 3 figures at the right end of the table rows above. Sending a core engine back?
What kind of rotators are on Oldsmobile heads?
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. Some heads are rumored to have the rotators on the intake or exhaust values only.
What should the crank height be on an Olds 455?
• Blocks machined to correct cylinder deck flatness to ± .0005 in all four corners to crank centerline • Cylinder heads surfaced on all three sides… ✦intake ✦exhaust ✦head surface
What kind of pistons does a Oldsmobile 350 use?
The Mahle pistons 0 decked with your current #8 heads give around 8.6 to 1. The DSS pistons put you around 9.2 to 1, 0 decked both with cheap Felpro gaskets. The #8 heads need a bowl hog on the exhaust side to match early heads for flow. I would also add 2″ W31 intake valves with a bowl hog under the valve.
Do you need a bowl hog on an Oldsmobile 350?
The #8 heads need a bowl hog on the exhaust side to match early heads for flow. I would also add 2″ W31 intake valves with a bowl hog under the valve. So hone the block the additional .003″, decide on pistons, 0 deck, get a better cam from Cutlassefi, Cloyes billet roller timing set and degree it.
What kind of Cam does an Olds 82-85 VIN 9 have?
So, in summary. The 82-85 VIN 9 and 82-84 VIN Y had 5A heads with regular cam, the 85-90 VIN Y and the 86-87 VIN 9 had 7A heads with roller cam. Notice the VIN Y changed to roller cam 1 year before VIN 9 which is causing some confusion.
