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Forum: Pontiac - Race 02-19-2023, 01:00 PM
Replies: 21
Views: 1,954
Posted By chiefbigb
For what I paid for them I'm still happy with the...

For what I paid for them I'm still happy with the investment. The intake bowl was pretty nice. Exhaust side needed some blending. I'm not going to modify anything else
Forum: Pontiac - Race 02-19-2023, 12:58 PM
Replies: 21
Views: 1,954
Posted By chiefbigb
Pretty good stack of shims. I got the same...

Pretty good stack of shims. I got the same impression on the spring situation. My rocker studs hit the installation tab for the helicoil also but I think I can break them off or shorten the stud
Forum: Pontiac - Race 02-19-2023, 10:24 AM
Replies: 21
Views: 1,954
Posted By chiefbigb
I had the shop I use go over the heads. Springs...

I had the shop I use go over the heads. Springs were light pressure wise. Average 100 on the seat and 240 at .540. The valve job was decent and guides were fine. No metal shavings found anywhere. One...
Forum: Pontiac - Race 02-07-2023, 08:02 AM
Replies: 21
Views: 1,954
Posted By chiefbigb
The butlers list 1.65 melling stamp steel rockers

The butlers list 1.65 melling stamp steel rockers
Forum: Pontiac - Race 02-03-2023, 10:48 PM
Replies: 21
Views: 1,954
Posted By chiefbigb
I'm going to move the hole towards the intake...

I'm going to move the hole towards the intake side about .100
Forum: Pontiac - Race 01-31-2023, 09:20 AM
Replies: 21
Views: 1,954
Posted By chiefbigb
That's with 1.60 ratio. The plate could be...

That's with 1.60 ratio. The plate could be centered a bit better
Forum: Pontiac - Race 01-31-2023, 08:16 AM
Replies: 21
Views: 1,954
Posted By chiefbigb
I start the pushrod length long on stud mounted...

I start the pushrod length long on stud mounted systems and keep shortening it till the pattern moves to the intake side of center. That gives me a starting point. I came up with 8.950 that is with...
Forum: Pontiac - Race 01-31-2023, 07:49 AM
Replies: 21
Views: 1,954
Posted By chiefbigb
5/16 pushrods.

5/16 pushrods.
Forum: Pontiac - Race 01-30-2023, 10:18 PM
Replies: 21
Views: 1,954
Posted By chiefbigb
1.5 pics

1.5 pics
Forum: Pontiac - Race 01-30-2023, 09:53 PM
Replies: 21
Views: 1,954
Posted By chiefbigb
I mocked this up Tonite. I see no issues running...

I mocked this up Tonite. I see no issues running 1.60 or greater ratio rocker. Actually 1.5 is to close to the intake side on these heads. I will have to clearance them.
Forum: Pontiac - Race 01-18-2023, 08:25 PM
Replies: 21
Views: 1,954
Posted By chiefbigb
1.65 rockers on speed master heads

I bought a set of them a few years ago and may try them on a 408 I have. Has anyone had any areas using 1.65 rockers with 5/16 pushrods that hit? I'm going to mock it up this weekend.
Showing results 1 to 11 of 11

 
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