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all 440's are 6-packs
just like all chev 350's are LT1s

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The "C" on the pad means "Special Rods & Pistons". That is a six pack block. There should also be a "C" on another spot on that block if it's a real six pack and someone hasn't just put the C on the pad. I'll PM you with that location.

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so it's a secret??? I thought this was a "question & answer" board...just think the havoc I could wreck if I knew the secret location of the magical "C" stamp.

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There are hidden numbers and symbols on all vehicles that the general public doesn't know about. These are put there for reasons you should be able to figure out. .....

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The "C" on the pad means "Special Rods & Pistons". That is a six pack block. There should also be a "C" on another spot on that block if it's a real six pack and someone hasn't just put the C on the pad. I'll PM you with that location.

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Sorry dude, I'm calling BS on that one, I've owned more than one numbers matching 1970 440 Six Pack car and NONE of them have had the magical "C" you mentioned. I'm not saying that SOME may have had a "C" stamp, but it's certainly not something that positively identifies any 440 as a six pack block, there is only one way to do that and that is to match the blocks VIN sequence# to an original 440 Six pack car, as far as cranks and rods go, all 70 440's used the same rods and cranks, the Six Packs did use unique pistons which had valve reliefs on both sides, but that's an easily changed out componant so unless you know for certain the engines never been appart it's not sure bet. PERIOD END OF STORY!


Same goes for your comment about "secret" numbers stamped into cars in hidden places (other than the already well known locations). I hate crooks and thieves as well but that's pure fantasy urban legend.

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....I've owned more than one numbers matching 1970 440 Six Pack car and NONE of them have had the magical "C" you mentioned......

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Just curious, have you had the bathtub/intake gasket off on all those 'matching numbers' cars? And I'm thinkin' the 'C' six-pak reference is for 69 1/2 cars.

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Just curious, have you had the bathtub/intake gasket off on all those 'matching numbers' cars?

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I've never owned one with the original intake gaskets, they'd all been R&R'd at one time or another, but I do have good clear photos of the block pad stampings as well as the block VIN# sequence stampings and matching VIN tags if you ever need to see proof to say, settle a bet?

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all 440's are 6-packs
just like all chev 350's are LT1s

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Smart [Edited by Moparts - Keep it clean].

The engine needs a rebuild, block looks untouched (other than being torn down) and has the six pack crank and connecting rods. That and the engine shop that has it says it came from a six pack car. The engine was dropped off for a rebuild awhile ago and work started but then divorce hit, couldn't pay the bills and forfeited the engine block in lieu of payment.

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has the 6pk crank ???

does the shop still have the pistons they removed from that engine ???

i'm not buying the its a 6 pk because every knows that a 6pk block is an HP2 ...

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Oh and my understanding is that HP2 does not mean anything other that second shift of production.

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Just curious, have you had the bathtub/intake gasket off on all those 'matching numbers' cars?

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I've never owned one with the original intake gaskets, they'd all been R&R'd at one time or another, but I do have good clear photos of the block pad stampings as well as the block VIN# sequence stampings and matching VIN tags if you ever need to see proof to say, settle a bet?

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I wasn't asking if they had original valley pan gasket, rather I was asking if you had viewed the complete pad. I've noticed that as a general rule, the 'C' is at the back of the pad and the valley pan is usually covering it.