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SOLD Parts The parts in here have already been sold. The topics will be kept for a few months for reference. |
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#41
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It's simple, PHS gives you the born on info. You want a kings ransom for the block. You have an avenue to justify the cost or just keep speculating.
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The Following User Says Thank You to Hammertime Mike For This Useful Post: | ||
#42
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Ok i give up! You are all right there were no HO Yc motors. I am going to contact the owner of that GTO so he can sue mecum for that YC coded so called HO GTO..
Geez, now I know why Biden became president. |
#43
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In case you missed it
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#44
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The problem I have is that people are fighting over this block being the holy grail, an “HO” motor. No matter what car it sat in most if not all sites define a 1970 motor with casting 483677 regardless of the two letter extension as an HO motor. |
#45
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Okay so can you go to all the pontiac website links i provided stating this is an HO block, mecum auctions who show a 1 of 242 GTO’s with a YC block that they are wrong. Once i get confirmation of at least one website the 1970 483677 casting block is not an HO i will humbly apologize.
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#46
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Your block came in a 71 model car. Look at your vin number’s 2nd digit.
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The Following User Says Thank You to John Milner For This Useful Post: | ||
#47
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Post 28 I told you to pull the PHS!We are now going on 47!Tom
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The Following User Says Thank You to tom s For This Useful Post: | ||
#48
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Insults and politics will not help you make your case.
Some of the guys helping you have 40+ years buying and selling Pontiac parts. You spent an hour on the internet to find bad information, and are using it to make your case. Do you understand that there is a big difference between a 1970 455HO and a 1971 455HO. It’s about the same difference as the one between a RA3 and a RA4. But your block as identified by the vin didn’t even come out of a car with a 1971 455HO as an option. So what are you hoping to accomplish, no one here is going to agree with your false premise. |
#49
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Ther is no evidence the motor made it to a 1971 car and even the Vin indicates a really high number that shows its unlikey to been installed in a 71 vehicle.
21P304555 The 1 before the P is the year indicator making this in fact a 71 block |
#50
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About that VIN
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Clay |
The Following User Says Thank You to "QUICK-SILVER" For This Useful Post: | ||
#51
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The “YC” is the ENGINE APPLICATION code. Could it have mistakenly found it’s way into a HO car? Sure anything can happen on the line. More likely the application code was misstamped however then a complete incorrect block used. However this makes the YC coded block really only valuable to the original car or to someone who needs a 4 bolt main block. All models had application codes specifically (usually YS comes to mind.) to their line. That code determines the engine, the trans, heads, cam, etc. so knowing YC application ISN’T no matter how you cut it an HO code, we can safely assume it isn’t a HO block, or at least a correctly coded block. When guys open their hood it’s that code most enthusiasts look for, not the casting number or date code. It doesn’t take long in 52 years to swap a set of 4 bolt caps from a 421 or a 428, the 428 being a fairly common block so it’s also possible in 52 years that someone made themselves a 4 bolt block. Did it myself with a 69 428. And before anyone says anything I used ProGram billet mains lol so no one is gonna make the claim it’s original. Lastly. Your claim of an hour spent searching, well I spent 5 minutes searching Joe Biden and found numerous sites saying how great he is. Guess that means he’s a great President? This isn’t a political forum nor do I agree so I’ll bring it back to cars. I can find misinformation for years on the internet that misinformation gets processed by guys who don’t know better and assume because they spent an hour trying to look for it and they found that it MUST be true. It perpetuates the cycle. It’s no different then the ram air casting heads for 70. One guy says he has 13’s and now 20 percent of the guys who aren’t open minded enough to study learn and take advice from guys in this hobby a HELL of a lot longer (some of em long enough to have bought some of these cars new) then the person trying to learn, sell, trade, collect. This site is full of guys who can spot the wrong shade of phosphate coating on bolts six states away., you might spend an hour researching on THIS site. Just my opinion. |
The Following User Says Thank You to FASTASSBIRD For This Useful Post: | ||
#52
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#53
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The problem I have is that people are fighting over this block being the holy grail, an “HO” motor
There is no fight. It isn’t the “holy grail” of HO motors. That belongs to the WC hands down. Don’t believe me just try and buy one. Expect to spend 4K and up I would guess. My gut reaction to the whole thing is that it was an extra they had sitting there so they stamped it YC and moved it out. I’d like to see the part number on the front main cap that will say a lot but I can already see something else on the pics that does lead me to think it was a legit original 4 bolt main block. Not uncommon for them to need a block and use the first thing that they could grab. Being a vin in the 4k’s (basing this on previous mentioned big cars starting at 300k.) would mean it was very early in the 71 year. |
#54
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Thanks for the reply, here is a picture of the main cap. I am assuming this is original 4 bolt main caps since this was a standard bore. It appears to be GM5 A77? |
#55
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#56
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That’s the rear it looks like. I want to see the front cap looking down at the face of the block. Plus their should be a full part number on the cap. I’d have to go look at mine to see what the part number is but legit original 4 bolt blocks used a specific front main cap. In the end all that will tell you is it has the correct caps. Not a definitive answer to it being an original 4 bolt from the factory but certainly helpful info in the argument. Most guys who swap the caps just swap the center caps cause they don’t know better.
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#57
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#58
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#59
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#60
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