PRHeads's latest activity
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PRHeads replied to the thread distributor timing issue.First thing……..Verify the TDC marks are correct. Then, don’t guess……..put a timing light on it. If it’s still a dud with the timing... -
PRHeads replied to the thread 413 build ideas.I’d def look at different manifold if you’re after more power. What carb is on the engine now? Rear gears? Converter? If you get...
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PRHeads replied to the thread Looking for advice on refreshing an RV 440.Fwiw, I prefer to eliminate the rotators. On any heads I’ve seen with them, when the factory used rotators, the ex valves had two...
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PRHeads replied to the thread One white valve.Maybe it’s just the rather low miles, but there looks to be a fairly generous area in the chamber on the intake valve side that seems...
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PRHeads replied to the thread Aluminum head valve spring choice.This isn’t to say the springs that came on your heads would suffice, but…….I often use the same springs on SFT cams that I’d use on some...
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Thanks much for the info and your expertise! Guess I'll keep plugging on them. Thanks again.
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PRHeads replied to the thread Aluminum head valve spring choice.Disregard everything I said about the valve length and rockers. Major brain fade on my part. You said Promaxx…….but I was thinking “Pro...
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PRHeads replied to the thread I am looking to buy a Mopar 440 crankshaft support, main cap center, number 3.Yup. The block with the missing cap could possibly be a candidate for a build where the block was going to be upgraded with aftermarket...
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PRHeads replied to the thread Aluminum head valve spring choice.Retainers come in all manner of sizes and fitments for different spring, stem, and lock configurations. It’s no surprise that your old...
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PRHeads replied to the thread Aluminum head valve spring choice.You need to know what installed height the spring will be used at. With the “correct” length valves, Comp cams steel retainers, 10*...
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PRHeads replied to the thread Cam question Comp cam Extreme energy.Looking at the catalog, the XE262 cam for a SBM shows the recommended spring is a 901-16, which is very close to the stock 340 spring...
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66 coronet 500 (uk raced car) stock class and pro et class 11.6 @114 452ci iron heads solid 590 cam crane rollers demon carb full...
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PRHeads replied to the thread post your stock appearing class car.Actually, the 8 quickest FAST cars are run off in a pro-ladder elimination format(1 vs 8, 2 vs 7, etc). Winners of the pairings square...
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PRHeads replied to the thread New valves.The moisture in the air can react with the carbon deposits on the valves and corrode them badly. At a minimum I would disassemble the...
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PRHeads replied to the thread heat or no heat for the intake.I think pretty much all the aftermarket aluminum heads for a BBM don’t have any exhaust heat crossover passage. Nor do most of the...