- Joined
- Aug 29, 2010
- Posts
- 47,128
- Reaction score
- 9,299
- Location
- OKC, OK
- First Name
- HotRod
- Truck Year
- 85 K20 LWB
- Truck Model
- Silverado
- Engine Size
- 454 - Turbo 400 - 3.73
Depends on that Scat crank. It's very possible it has a 350, 5.7 rods and those the better ones to have with a 383 stroker rather than the shorter 400 engine rods. Use the longer rod so long as the pistons have the wrist pin in the correct compression height. The longer rods take alot less strain and more apt to run a bit higher rpm without problems. If all that is said that was done, that looks like a good build. Rods were resized, line hone was done etc. They did some good things that alot of people seem to skimp on.
If the engine is that low of mileage still, and if not done properly, the rings may not even be seated yet. Those plasma moly rings are hard to get seated, they take awhile. If it were me, I'd probably just start over with a new break in proecdure. Put a 195 thermostat in it for awhile so it runs a tad hotter, use standard 30 weight NON DETERGENT motor oil. You don't need detergent in a new clean engine anyway. But you don't want something so slick the rings aren't scrubbing the cylinder walls. Do a cam break in or Zinc addative too. Warmer engine, let them rings scrub the cylinders walls for about 500-800 miles and they should find a happy home and last a good long time.
If the engine is that low of mileage still, and if not done properly, the rings may not even be seated yet. Those plasma moly rings are hard to get seated, they take awhile. If it were me, I'd probably just start over with a new break in proecdure. Put a 195 thermostat in it for awhile so it runs a tad hotter, use standard 30 weight NON DETERGENT motor oil. You don't need detergent in a new clean engine anyway. But you don't want something so slick the rings aren't scrubbing the cylinder walls. Do a cam break in or Zinc addative too. Warmer engine, let them rings scrub the cylinders walls for about 500-800 miles and they should find a happy home and last a good long time.