which plates?

[NITROUS]

I made a set out of stainless like the first pic. That print is just slightly off so measure the center to centers on your block unless you open the hloes up a 1/64th larger for alignment. Not to sure why they went with the countersunk holes because I had enough clearance for a regular hex head cap screw. I used the counter sunk holes anyway. LOL Here's a pick of my plates.





BTW, the hole in the cylinder block is to add more cubic inch.

[RedHeartbeat]

Those look pretty similar to the ones in mine. They're holding up just fine even with all the abuse they've gotten.

[NITROUS]

BTW, The 2nd set of plates will fit a C4 swap like this one. Some friends of mine are doing this one.