I'm at a point where I can start some assembly on my engine so I thought I'd start this thread to document some of it....I still need some parts/time/money so it won't be a fast job but I'm getting closer.
I ordered some Diamond piston from Ray Barton; they came in today and look very nice. I talked to Ray a bit and followed his advice to use Diamond - they have very modern tooling and seem to be at the top of the game right now. These are custom in a few ways...4.07" bore, 15 degree valve angle, .927 pin, and made to give 11:1 CR based on my deck height, 6.25" rods and 3.79" crank. They also use the rings Ray recommended which are a 1.5MM thickness. Last, tool steel wrist pins made in Michigan, USA.
Now that the pistons are here, I can finally take the block in for boring/honing.
The heads are Chapman CNC ported W7's with 2.15 / 1.60 valves. I have a solid roller Bullet cam of just under .700 lift which matches well with the head flow numbers.
I'll probably run in the engine on a carb then switch over to a FAST EFI system once I'm ready.
View attachment 1715625905 View attachment 1715625907
