263 Buick finned valve cover.

**32special** · 11-30-2015, 07:20 PM

Originally Posted by Gunner

I may be mistaken, but the valve covers for the 263 and the 248 maybe identical in terms of physical size. I know they both use the same gasket. The only issue I can think of is the distance between the hold down stud holes. On the 248 (1940 on & maybe earlier) the distance is 22 & 13/16 inches, equal distance from each end. If the 263 is the same, it would increase the potential customer pool. I have a 248 and would be interested in the finned cover if it fits.

When I make my patterns I measure from center of bolt hole to center. The measurement I got was from the inside end to thee other and is 22 5/8. Will that work?

**Gunner** · 12-02-2015, 06:59 AM

I don't believe that difference is a problem, the flat area for the hold down studs leaves room for slight adjustment on the holes. The length & width of the valve covers on both engines must be the same as they use the same gasket. The interior height needs to be 3.75" to provide stock clearance for the valve train. As long as those measurements are good to go, I am certainly interested in purchasing one of the valve covers w/o the hold down stud holes drilled.

**32special** · 12-02-2015, 07:34 AM

Originally Posted by Gunner

I don't believe that difference is a problem, the flat area for the hold down studs leaves room for slight adjustment on the holes. The length & width of the valve covers on both engines must be the same as they use the same gasket. The interior height needs to be 3.75" to provide stock clearance for the valve train. As long as those measurements are good to go, I am certainly interested in purchasing one of the valve covers w/o the hold down stud holes drilled.

If I remember my numbers accurately the inside clearance is 5"+. No less. It's a tall cover. I made it that way for the guys who are running roller rockers.

**Gunner** · 12-02-2015, 08:54 AM

That sounds good. Just need longer hold down studs, still plenty of clearance under the hood.

**CNC-Dude** · 12-07-2015, 04:52 PM

Looking good! How much shrink allowance are you using for your pattern?

**32special** · 12-08-2015, 08:26 AM

Originally Posted by CNC-Dude

Looking good! How much shrink allowance are you using for your pattern?

Thanks. 5/32 per ft

**39CENT** · 12-11-2015, 08:13 AM

[QUOTE=32special;99945]If im not mistaken the 263 was and is the ideal racing engine according to alleykat. I read all his stuff and went my self with that engine. I will be doing the same for the 320 soon as pattern for the smaller mill are finished.

sounds like a good way to go, theres many more 248/263.s out there , they can pay for the 320 covers, and may be able to get capital for a good breathing aluminum head. gggg

**Illmatic505** · 12-14-2015, 07:40 AM

Defiantly interested in one for the 263! Also looking into a intake 4x2....

**32special** · 12-14-2015, 09:26 AM

Originally Posted by Illmatic505

Defiantly interested in one for the 263! Also looking into a intake 4x2....

Got you covered. Just finishing up the 2 piece thermostat housing. The top outlet seems to always be rusted on the neck. Aluminum should fo a better job.

**dealbud57** · 12-18-2015, 04:41 PM

Originally Posted by 32special

Attachment 5782
Lil sneak peak on the 263 finned valve cover. Still have to blend in the fins with each other then seal and paint. Then ill move on to finishing the 4x2 intake. Ill see what kind of interest I get.

Pimentel Racing Eng.
Jesus S. Pimentel

really like o have one for my 248 CI it sucks no one made any coolparts for these awesome cars!