rebuilding 245's

**eli** · 10-20-2016, 07:32 PM

got motors all torn down the ring gap is around 30thou ,piston clearance 25 thou +
the motor's turned over by hand so smooth like there was no drag left ,when I unbolted rod caps you had to catch pistons on there way out , still had enough left to push the boat with 4 adults to 100 imagine what it will be when I get them back in spec ,wow.

**dwilfong** · 10-21-2016, 05:37 AM

What was the cranking PSI and blow down before the tear down?
If it was good it may not change any thing after the rebuild.

**eli** · 10-21-2016, 06:33 PM

did leak down on a few cylinders around 8% i did not do a compression test ,i have run 4 sets of rings thru these bores my ring gaps were 27 to 29 last time i re rung , i had to wait 1 more summer to redo the engines the motors ran ok but had no low end and nothin on top 7200 was max rpm , where as i use to run 8000 before ,even with 26 pitch 7200 was max so i just cruised around for 1 more summer blew away few bass boats along the way ,blocks are going to stealth performance first , then to U.S. Chrome

**97 TWISTER** · 10-21-2016, 08:16 PM

I hope your gonna have Dave massage the ports and exhaust a bit before they go to US chrome. I loved my twister but its been sitting upside down longer than I would like to think about. Mine put up some big numbers and always wanted to try and drag race it. I hate to even say it I might just put it back on the trailer next year and give someone else a shot at it.

**eli** · 10-21-2016, 09:45 PM

that is the plan dave's first before he gets busy with snowmobile motors , the twister would make great drag boat the interior out is another 150 #'s the twister is the easiest boat i have driven at 100 it take a nice set