Logo
FULL SITE MENU

Recent content by ric243

  1. R

    6-71 Liner/Piston Compatibility

    Looking at the cylinder kit options available it looks like it's either a 1.05" liner with 18.7:1 CR pistons and a 4 valve head, or a 0.81" liner, 17.5:1 CR pistons with 2 valve head. Can I run a compression ratio of 18.7:1 with a 2 valve head!?
  2. R

    6-71 Liner/Piston Compatibility

    Good Morning, I am finishing up a rebuild of an old Gray Marine engine, essentially an inline 6-71, two valve head, normally aspirated with older style pistons, see below picture. The original engine had old style injectors, advanced timing, and .81 inch liner ports. On advise, I installed N65...
  3. R

    Coolant Flush

    Okay, thanks for the info, appreciate it.
  4. R

    Coolant Flush

  5. R

    Coolant Flush

    Hi, I've just hauled an engine out of a 2 year layup, where it has been drained of coolant. It's a cast iron block and there is rust in the coolant channels. I've attached some pictures, is this particularly bad? I was thinking of dealing with it through an engine flush. Can anyone recommend...
  6. R

    UK Spares

    Good Morning, I am looking at rebuilding a 6-71 in the UK. Anyone know of a good place to source spares without importing? Cheers, Richard
See more
Back
Top