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by Trowerpower
Sun Sep 08, 2019 10:20 pm
Forum: Engines
Topic: 318/392 Stroker Motors
Replies: 65
Views: 50520

Re: 318/392 Stroker Motors

The blocks were bored .030 over and there is a rotating assembly from Scat Enterprises including, pistons, rods and a forged crank. Custom ground cams and Scorpion roller rockers. The valves were enlarged slightly to help it breath better. 750 edlebrock carbs stock intake. My e mail address is gregs...
by Trowerpower
Sun Sep 08, 2019 10:10 pm
Forum: Engines
Topic: 318/392 Stroker Motors
Replies: 65
Views: 50520

Re: 318/392 Stroker Motors

Most of the marinas on Norris Lake have 93 octane fuel made by Phillips 66. I believe they call it valvetech. It has no ethynol. Thanks for all the comments! Starboard engine is still running great.
by Trowerpower
Tue Sep 03, 2019 9:01 pm
Forum: Engines
Topic: 318/392 Stroker Motors
Replies: 65
Views: 50520

Re: 318/392 Stroker Motors

155 was the highest cylinder pressure in the starboard motor that still runs great.
by Trowerpower
Tue Sep 03, 2019 8:58 pm
Forum: Engines
Topic: 318/392 Stroker Motors
Replies: 65
Views: 50520

Re: 318/392 Stroker Motors

Yes I have pictures, 9.8 to 1 is the compression ratio., it's failing between no. 1 and no.3. The plugs are rich, running a HE I type distributor will have to check my file on timing. Starboard motor is doing great. Gapping plugs at .055. 93 octane marine gas. RAP HEAD BOLTS NEW THE LAST TIME ASSEBL...
by Trowerpower
Thu Aug 29, 2019 9:39 pm
Forum: Engines
Topic: 318/392 Stroker Motors
Replies: 65
Views: 50520

Re: 318/392 Stroker Motors

We hope to pull the boat out of the water mid September to pull the port motor.
by Trowerpower
Wed Aug 14, 2019 8:25 pm
Forum: Engines
Topic: 318/392 Stroker Motors
Replies: 65
Views: 50520

Re: 318/392 Stroker Motors

Engine builder will disassemble, diagnose and repair after boating season is over. Taking the entire motor to him.
by Trowerpower
Tue Aug 13, 2019 8:02 pm
Forum: Engines
Topic: 318/392 Stroker Motors
Replies: 65
Views: 50520

Re: 318/392 Stroker Motors

I do not believe the overheating caused the blown head gasket. I believe its the result of a blown head gasket. It started at 160 then fluctuated between 160 and 200. Yea it went to 220 but only momentarily. It runs/starts well, only under wot does it start stumbling. Only further disassembly will t...
by Trowerpower
Mon Aug 12, 2019 7:12 pm
Forum: Engines
Topic: 318/392 Stroker Motors
Replies: 65
Views: 50520

Re: 318/392 Stroker Motors

Well, i have bad news, the port motor has blown another head gasket between cylinder one and three. This is the third one. She will run up to 4,000rpm and then backs off to 3200rpm. No water in the oil thank you Lord. Will probably pull the motor, check for worpped heads and block and try it one mor...
by Trowerpower
Tue Jul 30, 2019 11:15 am
Forum: Engines
Topic: 318/392 Stroker Motors
Replies: 65
Views: 50520

Re: 318/392 Stroker Motors

Considering trying "Barnacle Buster", let it sit in the engine for four hours and then open the fresh water valve and flushing the engine. It is really meant for salt water closed cooling systems however they do claim rust removal.. It appears i have slight blockage some where in the engin...
by Trowerpower
Tue Jul 23, 2019 9:10 pm
Forum: Engines
Topic: 318/392 Stroker Motors
Replies: 65
Views: 50520

Re: 318/392 Stroker Motors

Installed a new engine circulation pump with no change. No engine hot spots and cool exhaust manifols. Clamped the short hose between the circulation pump and the engine and it cooled right down. So there is something keeping the water in the engine at the thermostat housing. It has the new thermost...

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