80FoxCoupe
Well-Known Member
I run LA Sleeves in my engine. Built in 2020 and still rippin. Been recently freshened up and is now 328cid. This engine has not made less than 1150whp, and currently makes 1300whp thru a th400. I'm pleased with them and I'm sure they will serve you well.Speaking of great vendors, I was able to talk to David at LASleeve. He answered all my questions and was very knowledgeable. I have done Darton sleeves in the past, but I liked that LA sources all their ductile iron from America and they do all their machining in house.
Fortunately I was able to find some off the shelf pistons in stock that fit the bill. A 1.6 dome piston from JE will put me between 10.6 and 10.9:1, depending on what the heads CC after the port work. They are currently getting the seats touched up and the throats opened, so I won't know for sure til I get the valves back in. So my guess is they are not 55cc as stock but I really doubt they will be over 59cc. They come with 0.230" wall Tool Steel wrist pins so I think they will handle way more than I will throw at them.
Also got some Cerakoting done and the timing chain cover deburred. I was shocked that a brand new cover had so many chunks of sharp aluminum that protruded from the inside surface. I went over that with abrasive nylon wheels til everything was smooth. Everything had to be masked off so aluminum oxide wouldn’t get inside the oil areas. After coating and a couple day cure, everything went back into the ultrasonic with fresh cleaner for a final douching. Water pump and GT500 Oil Filter Assembly are done. I also made billet plugs for the oil cooler ports. I just need to make a retention plate to keep the plugs in. I will say AI has made part design so much easier. I gave it the bore dimensions, and it spit out plug dimensions, groove width and depth for 25-30% O-ring compression and even the part number for the correct Viton o-ring. Saves a ton of math and time for sure.
So the block is deburred and at the machine shop. So they are currently sleeving the block, line honing it with ARP studs. balancing the rotating assembly, and will finish bore to 3.661” with the latest Rottler CNC hone that was developed with the help of Total Seal. Can’t wait to see the new way of honing cylinders in person.
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