aluminum fined valve covers-what do they fit?

[streetrod777]

hello, i just bought a pair of small block aluminum valve covers that i thought were for a sbc, but getting them home they are a little longer, the bolts (straight accross from each other) are farther apart in length etc. these valve covers are really "cool" and have not ever seen this style before. they are beefy'r and taller than the typical "Cal Custom" type made years ago. I am guessing that they are for a buick but have no clue. The measurement between the mounting holes center to center in length is 10 5/8" and the measurement across center to center of mounting holes is 4 3/4". The overall length from inside the gasket flange to the other side is 20.5" and the width is 5". Does anyone know what these fit?

Thanks alot!

[Schurkey]

First guess would be Pontiac. They also used four bolts to hold the covers on.

[streetrod777]

Thank you...I put them on Ebay today and yes they are Pontiac...hopefully someone will want them, they are pretty cool covers.

Marty