Installing splayed main caps

You should upgrade or use an alternative browser. Installing splayed caps. I have been asked about the installation of splayed caps many times over the years.

I use flat bottom caps with 10 degree angle outer bolts because with the 10 degree outter bolts you should not get into the water jackets. I have had many calls about outter bolt holes getting into the water jackets only to find out its because of the 18 or 22 degree outter bolt holes.

Alot of classes out there are restricted to run OEM blocks and most racers like the weight savings of the OEM block and 's we are now seeing over plus HP and with the added stroke its best to go to a splayed center cap, Its always best to sonic test the cylinders for thickness before spending time and money on cap work.

First process is to cut the register either with an end mill or I use a 2. I like to see a. Both companies use a 10 degree outer angle. Last edited by a moderator: Jan 2, Last edited by a moderator: Feb 16, The price may not be that far a part, and you get a whole lot stronger block.

Apr 26, 8. Thought u just built a motor for it? Apr 26, 9. Messages: 4, Likes Received: Apr 26, You must log in or sign up to reply here. Show Ignored Content. Share This Page Tweet. Your name or email address: Do you already have an account? No, create an account now. At this point you should also ensure that the main cap mounting surfaces are spotlessly clean and free of any nicks, burrs or other contamination. This step is important to ensure perfect seating of the main caps.

Clean and inspect ALL studs and verify all dimensions. Remove all shipping lubrication from the studs until they are squeaky clean. While not specified by the manufacturer, we prefer to brush a very thin coating of ARP Ultra-Torque fastener assembly lube on the threads. Do not over-tighten the studs in the block. Note: If permanent mounting of the studs is desired, Loctite may be applied to the threads. If you do this the fasteners must be final torqued before the Loctite sets up.

Install the main caps and check for proper fit and alignment.