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Merc 420 to 525sc in a Formula 242.

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Merc 420 to 525sc in a Formula 242.

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Old 12-18-2015 | 09:13 AM
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That totally sucks - are you doing the rebuild or a shop?

Ryan
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Old 12-18-2015 | 11:01 AM
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That's a good argument for keeping a wideband hooked up all the time.
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Old 12-18-2015 | 11:12 AM
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Anybody running this unit from Innovative DLG-1: Dual Lambda (AFR) Gauge Kit - If so do you like it?
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Old 12-18-2015 | 03:18 PM
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Steve Auto and Machine in LittleValley NY is building the shortblock. Just got my heads reconditioned. $800 for heads re-done with manley Extreme Duty valves.

Originally Posted by Ballistic Beak
That totally sucks - are you doing the rebuild or a shop?

Ryan
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Old 01-01-2016 | 08:58 PM
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The build so far:

Block decked, line honed with ARP main bolts, and bored .060 over
New Melling 10778 HV pump
Stock crank had to be turned .010/.010.
Stock rods rebuilt with ARP bolts.
New L2399 pistons.
New Crane 134561 cam and lifters.
Heads received all new seats.
New Manley Severe duty 2.19 intake valves.
New Manley Xtreme Duty 1.88 exhaust valves.
Oil cooler, hoses, and filter mount from HP500.
Mercruiser 525sc Blower, carb, and intake manifold.
DUI distributor.

It should all be assembled in the next few weeks. I am also paying the money to have it broke in on the dyno and tuned on the dyno. Ill post pics and videos as I get them. I hope my 242 runs 75.
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Old 01-01-2016 | 09:47 PM
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Money well spent on the dyno! Keep up the progress!
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Old 01-01-2016 | 10:01 PM
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Since Steve is building the motor, he quoted me $300 to throw it on the dyno and tune it. I felt that the $300 was the smartest money spent on the whole build.

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Money well spent on the dyno! Keep up the progress!
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Old 01-02-2016 | 03:47 AM
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Did this boat come from Massachusetts?
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Old 01-02-2016 | 08:34 AM
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Originally Posted by Fischan
Did this boat come from Massachusetts?
The boat was put together by 86242ls in Illinois, then sold to Shekmark in NJ. I drove to jersey to get it. It was nowhere near as clean as when 86242ls had it when I got it. 2yrs in the salt cost me a few grand to get it back up to snuff.


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Old 01-08-2016 | 06:50 PM
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The heads should be done next week. The rotating assembly got balanced today. Shortblock gets assembled next week. Cant wait for summer!
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