Re: Interesting OEM 522 Whippled EFI engine build.
 

Well the ARP hosing continues. Still waiting on studs.

I only have a few hours of work remaining but without the studs, it may as well be a weeks worth.

I will know better next time. How to deal with them.

I can fill in with a pic of the intake valve after lapping in. cannot just throw together a new set of heads without seeing for myself that the valves are going to seal.

The "frosty" ring around this valve is where I lapped it in. Matching frosty ring on the seat. Should seal off well.

http://www.riverratlife.com/uploads/info/lap.jpg

Re: Interesting OEM 522 Whippled EFI engine build.
 

A quick update.

The studs finally show up. Here is a shot of them installed. There are 5 different lengths for the Edelbrock heads.

Do not like the lengths. Some too long and some too short. Will post pics later.

Time to call ARP tech support and maybe get a custom mix of fasteners.

http://www.riverratlife.com/uploads/info/studs.jpg

Re: Interesting OEM 522 Whippled EFI engine build.
 

One Beware FYI type thing.

These Cometic gaskets are made from several layers of metal. Riveted together in four places out of the way of head/block clamp up. This rivet is just asking to fall out and into the engine.

http://www.riverratlife.com/uploads/info/rivet.jpg

Re: Interesting OEM 522 Whippled EFI engine build.
 

To address a question from another site asking if I was questioning the design of the Cometic gaskets.

The rivet mentioned above is poorly installed. I can push it out very easily. Here is the rivet on the other side. It is installed well and the gasket is clamped together good on this end.

Proposed solution is to clamp it down myself and if I do not like the way that turned out remove it all together.

http://www.riverratlife.com/uploads/info/rivet2.jpg

Re: Interesting OEM 522 Whippled EFI engine build.
 

ARP is sending the correct length studs. Should be here any day now.

Interesting experience. Takes as long to get head studs as it does to build the engine.

I guess in their defence. They do not have a set specifically for the Edelbrock Marine head.

I will have the correct set (lenghts) on record for the future. 5 different length studs for these heads. All part of "building" an engine. Now this is known, it will not be a road block in the future.

In this case how many suppliers can you get head studs from? Not many options.

Well the brown truck arrived from the west with 8 new studs.

No charge from ARP also :D :D

The new correct length on the left and original too short on the right.

http://www.riverratlife.com/uploads/info/better.jpg

Re: Interesting OEM 522 Whippled EFI engine build.
 

Soft springs installed to check valve/piston clearance.

Now way they will hit but better check anyway.


http://www.riverratlife.com/uploads/info/softsp.jpg

Re: Interesting OEM 522 Whippled EFI engine build.
 

Isky hydraulic rollers. .083 wall swedged end push rods. Comp Pro Magnum Rockers.

Roll the engine around. Push the springs until the valve contacts the piston.

Missed by a mile.


http://www.riverratlife.com/uploads/info/check.jpg

Re: Interesting OEM 522 Whippled EFI engine build.
 

Dissassemble. Put the correct springs back on. Install the heads. Run the valves. Check pushrod length. Done deal.

Assembled the valve train one 1 head to check push rod length. Check 4 of them rather than just 1 cylinder.

One and five have Isky .150" shorter pushrods. Three and seven have stock length Manley hydraulic roller push rods.

Isky recommends these shorter pushrods with their new lifters. Plus the block was decked .022 or so to get the height I wanted.

http://www.riverratlife.com/uploads/info/prcheck.jpg

Re: Interesting OEM 522 Whippled EFI engine build.
 

First the stock length hydraulic roller push rod. Lower right of pic.

A bit too long.

http://www.riverratlife.com/uploads/info/toolong.jpg

Re: Interesting OEM 522 Whippled EFI engine build.
 

This one was the Isky .150" shorter push rod.

I like this one better.

http://www.riverratlife.com/uploads/info/goodone.jpg