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. Last post 18th annual all Oldsmobile Fall Show October 10 2021 Downingtown. Ad Find Deals on Products in Car Parts on Amazon. If its an A B or C head look for the engine unit numberID code as detailed in the Blocks section under Big Block Unit Numbers.

A heads I think are SBO units. These heads will have 2190 intake and 172 exhaust valves. Ad Huge Sale on Chevy Heads Now on.

They were among the very first of the aftermarket heads made. GMCnet Oldsmobile 455 heads G vs J. If the Warranty sounds to good to be true then it probably is.

The oldest castings used on the 1965. Cnc heads are available fully cnc ported at an additional cost. DONT BELIEVE ALL THE BIG NAME COMPANYS.

Heads with the small a designation are guaranteed to be hardened seat heads. Please use common sense when purchasing. Oldsmobile factory-production big-block cylinder heads are identified by a letter cast into the front lower portion of the head on the number-1 and number-8 cylinders.

The C Ca heads flows the best in stock form as for the Ka units the two centre exhaust ports are not blocked off and drains hp. The G and J heads have a 2000 intake and a 1625 exhaust except the marine G had a 2070 intake. This engine heads intake etc are out of a 1970 w.

Olds 455 K code heads vs. Ad Find Deals on Products in Car Parts on Amazon. This ad is for a pair of complete assembled aluminum Oldsmobile cylinder heads for 350-403.

Batten developed the first aftermarket heads for the engine but they were pricey and not many sets were made. The only problem is if you are using early heads off a 45 degree block on to a 39 degree block. Along with ductile iron seats that are compatible with titanium valves.

J code heads. Upcoming OldsOlds related events. I completed the short block yesterday I rechecked all my torque specs and buttoned up all the tin.

However the 1973 and 1976 Ka had a 2070. Such as Ca Da Ga and also Ka and J heads. THIS IS THE SAME HEADS THEY HAVE FOR A BETTER PRICE.

I have a clean set of F heads w30 original aluminum intake air cleaner quadra jet carb along with a w-30 block that needs to be gone thru. These heads are capable of over 400 cfm airflow. 1967 C heads had this number.

All big block Olds heads 400 425 or a 455 will interchange. The J is the exception due to being a smog head from 73-76. Olds guru CJ.

04-27-2011 0316 PM. We are a manufacturer of many Oldsmobile specific parts such as Olds Aftermarket block Cylinder Heads Intake Manifolds Valve Covers Stud GirdlesMotorplates etc. To start viewing messages select the forum that you want to visit.

Oldsmobile 455 J Cylinder Heads 1973 From Jet Boat. Ad Our Parts Are Made With The Finest Materials Provide The Most Precise Fit. I am in the process of cleaning up the horrible casting f.

Click the register link above to proceed. Although the ports have been raised Wise says that the current Edelbrock intake for the 455 Oldsmobile engine bolts right on to the new. As far as Olds heads are concerned all the big block head castings except the J code smogger heads flow within about 10 of each other.

If you plan to do any porting at all the J heads. You have to register before you can post. CCa and Ka heads are all big valve units.

Oldsmobile Cast Iron Heads Aluminum Roller Rockers Kit 400425455. Big Block Head IDCodes Casting Numbers. 1950s Oldsmobile Rocket 303 324.

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oldsmobile j heads. There are any oldsmobile j heads in here.