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Forum: Pontiac - Street 12-10-2023, 04:37 PM
Replies: 15
Views: 445
Posted By steve25
So from that receipt it look like the heads got...

So from that receipt it look like the heads got new valve springs, two new valves, new push rods and new rocker arms.

Both heads on any factory motor rarely have the same casting dates.

The...
Forum: Pontiac - Street 12-10-2023, 03:50 PM
Replies: 15
Views: 445
Posted By steve25
Whoops! Sorry! When you enlarge the...

Whoops!

Sorry!

When you enlarge the heck out of the photo you can make out a 4 on the front center exh pad.

So they where cast as they should be without the air injection boss in late enough...
Forum: Pontiac - Street 12-10-2023, 02:41 PM
Replies: 15
Views: 445
Posted By steve25
Looks like there original to 1970 which would...

Looks like there original to 1970 which would have been a casting #11 with a 2bbl intake and the 254 2bbl cam would have been in the motor .

Compression was stated as being 8.8, but more likely it...
Forum: Pontiac - Street 12-10-2023, 02:39 PM
Replies: 15
Views: 445
Posted By steve25
Looks like there original to 1970 which would...

Looks like there original to 1970 which would have been a casting #11 with a 2bbl intake and the 254 2bbl cam would have been in the motor .

Compression was stated as being 8.8, but more likely it...
Showing results 1 to 4 of 4

 
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