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#1
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1966' 440, Diamond on the ID pad? ( long)
OK fellas in the know. My father has a 1966 440 which came out of a Chrysler Town & Country Station Wagon, factory rated at 350hp that he SCORED complete for 200 bones.
My question is for him and myself also.........We rebuilt the short block no prob. We got ready to put a new set of Crane Cams lifters in the motor and discovered the STD. bore size lifters DON'T fit. So I am thumbing through a Year One catalog about 6 mo. later and find that some R/B motors had to have "oversized" lifters from the factory, symbolized by the Diamond on the ID pad along with the 440 B. Question: Does anyone know how much the factory oversized the lifters? Question: Are they available anywhere else cause the originals are shot? I have heard the 66' 440 block is very desireable due to the Forged Steel crank, and supposedly "thicker cylinder walls" ? How much of this is true? Also My father has offered me this engine cause he doesn't have anything to put it in and has decided to do his racing on WATER with his Yamaha powered Drag boat. I wanna put it in my 69' Dart Swinger, But I need some building tips. I know 66' heads have soft valve seats, so can I just run high octane fuel (its gonna primarily be a Streetrace car) or is it better to just put in hardened valve seats? It has a 8 3/4 under it, probably a 489 case, what gear would you guys guess would be in a 5000 lb. station wagon? Plus if I got new axles could I upgrade to the c-body rear drums (they're like 11X3" if I remember correctly) and I am currently looking for a 73' Dart Sport or duster to be so kind as to trade me front brakes And what about my drive shaft? Way too puny huh? And suggestions ? I wanna run high 11's on street tires! Let me know yor thoughts. Yes....Yes....I am going to BigBlock-Abodies right now! Swinger321 |
#2
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From the Mopar service manual: "A diamond shaped marking stamped on the engine numbering pad indicates that some tappet bodies are .008" oversize". A '66 440 will have a forged crank.
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#3
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You were right Swinger, the post was long!
The 66 did come with a forged steel crank, so that is desirable. Mopar didn't start using cast cranks in big blocks until 1970 on the 383 2bbl. You are going to get a lot of disagreement regarding what is a thick wall vs thin wall. Sufice it to say that yours is NOT a thin wall casting according to Mother Mopar. |
#4
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High 11's is easy with a 440.The short block is fine.What I'd do is put in a nice cam like the Mopar 292/509 hydraulic.The heads though.......You could put in the larger valves and work on them,but you'd be way ahead by finding a set of 452 heads and using those.You'll need a 3200 stall converter,and a minimum of a 4.10 gear.You can have a machine shop bush the lifter bores to the correct size,just make sure they also open back up the oil feeds.The c-body brakes should work.I built a 440 for my Demon years ago with cast pistons and 9.2:1 compression and with a solid lifter Mopar 296/557 cam,I was running 11.30's all day long.It can be done!!
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#5
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If those are the orignal heads remember that they have 1.60 ex valves in them, you would really want to step up to the 1.74. The head have a closed combustion chamber also,higher compression than 906s. Good luck, Jim
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#6
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If you have trouble with the lifters, you can take the block to a machine shop and have 'em bushed. It's relatively simple, but get a Mopar-friendly shop to do the work.
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