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Old 09-10-2013, 05:01 AM
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simplyconnected simplyconnected is online now
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Yes, Carl. Nick called me last Saturday with a quote he got from Wiseco pistons. They want $1,100 to cast new domed pistons for the 430. I advised him not to spend that much money on pistons. The ones he got in the pictures were from a Kanter engine overhaul set.

Now, he's looking for components at Falcon in Florida.

I asked Nick what the machine shop found when they tore the engine down. They told Nick, the oil galleries were full of metal chips, and some got into the bearings. I thought I'd drop the phone and die right there. Nobody washed the chips out.

I think he had more issues than that because those cylinder walls look nasty. The upper block is charred from excessive heat and no lubrication. I've never seen a block turn so black. Bottom line is, he has to start over and pay close attention to details this time.

I think the machine shop assumed Nick knew a lot more about building engines than he really did. Nick made the assumption that the machine shop would 'treat him right' and do everything necessary for a proper overhaul.

Nick had done a Pontiac engine in the past, but to what extent I don't know. He may have simply replaced a few OEM parts. I explained to Nick, a complete overhaul is vastly different and the 430 is probably the hardest engine to do, based on parts availability and prices.

I spent $300 just for crankshaft balancing on Penelope's 390 because the new .040" over pistons are larger and heavier than the originals. That forced me to add Mallory metal in the counterweights so I could use bobweights to represent the pistons. I cannot guess what affect flat pistons will have on a 430 crankshaft. I know the compression will be very low. - Dave
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Old 09-10-2013, 10:08 AM
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For more information on the 430 combustion chamber and piston design check: This will give you some insight as to the compression ratios and piston availability. I suspect Falcon and Mad Dog are related companies.
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