9248 cam blocks
#2
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Rob Edwards has a set.
#3
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Which are somewhere in the USPS system, on their way to Hans. I have the 85/86 blocks here, which are dimensionally identical. The only difference between the 9226 block and the 9248 block is the diameter of the holes that span the cam cap bolt sleeves- they're bigger on the 87-95 S4+ heads.
![](https://webfiles.uci.edu/redwards/public/85-86%209226-2%20cam%20hold-down%20blocks%207-30-13.jpg)
This tool set is confusing. If you buy a 9226, you get 6 pieces - two cam hold-down blocks (9226/2 times two), two cam lobe timing templates (9226/3, driver's side and 9226/4, passenger side), and two threaded rods to locate the blocks. The blocks only work on S3 (85-86) heads. If you order a 9248, you get one cam hold-down block.
So to have complete set that'll actually work on an S4, you need 9226 x1, and 9248 x 2.
The best part is, you don't really need any of them. You can just back the cam caps off one bolt at a time (splurge for a Hazet 990-8 XZN socket, trust me) with an air gun, then make them finger tight again, then go around the head and loosen each bolt 1 turn at a time until the cam is released from the head.
![](https://webfiles.uci.edu/redwards/public/85-86%209226-2%20cam%20hold-down%20blocks%207-30-13.jpg)
This tool set is confusing. If you buy a 9226, you get 6 pieces - two cam hold-down blocks (9226/2 times two), two cam lobe timing templates (9226/3, driver's side and 9226/4, passenger side), and two threaded rods to locate the blocks. The blocks only work on S3 (85-86) heads. If you order a 9248, you get one cam hold-down block.
So to have complete set that'll actually work on an S4, you need 9226 x1, and 9248 x 2.
The best part is, you don't really need any of them. You can just back the cam caps off one bolt at a time (splurge for a Hazet 990-8 XZN socket, trust me) with an air gun, then make them finger tight again, then go around the head and loosen each bolt 1 turn at a time until the cam is released from the head.
#5
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As Rob said you do not need them
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Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
George Layton March 2014
928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."![thumbsup](https://rennlist.com/forums/graemlins/bigok.gif)
![](https://cdn.shopify.com/s/files/1/1694/8685/files/928sRus_rennlist.png?v=1621798567)
Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
![thumbsup](https://rennlist.com/forums/graemlins/bigok.gif)
928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
![thumbsup](https://rennlist.com/forums/graemlins/bigok.gif)
#6
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Like Rob and Roger said, you don't need them. I did my cams without them with no problems. Slow and easy is the answer.