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I guess they are worth what someone is willing to pay for them. I was just on you-tube looking at the new ProMag Archangel rifle stock for the Mosin Nagant. ProMag introduced the stock with a retail price of around $200, for pre-orders. The first ones are now out and a guy on e-bay has got one for sale already bid up to $315! I guess the question is how bad do you want it and how deep are your pockets?

Don
 

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I have never tried to sell anything at a swap meet, but based on my limited experience on buying at a swap meet, the seller should take the first offer or take them back home. Either choice is reasonable depending on what the item is.
 

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I agree No special head for 55.
I always thought PP heads and a cam change were the reason for the 205 HP rating in 56. .
Agree with USA1 and Pack Rat....No Power Pack heads till '56.

I felt that was the case, when this thread was first posted....But could find nothing on the net to confirm.....THANKS guys.:)
 

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This Just In

Found this previous post:http://www.trifive.com/forums/showthread.php?t=10666

Power pack heads for passenger cars (some Corvettes are different)

Year cu.in. Casting Number .......................................Casting end i.d.
1955 265 ... 3703523 (standard and power pack engines) - rect. base only
1956 265 ... 3725306 (power pack) .............................- triangle
1956 265 ... 3731762 (super power pack) .....................- two towers
1957 283 ... 3731539 (power pack & 283 hp f.i.) ............- triangle
1957 283 ... 3740997 (super power pack and 250 hp f.i.) .- one tower

High compression heads began with the '56 power pack and super power pack heads.

3731554 is a std compression head, used in 1957 passenger cars with 2 bbl carbs, both 265 and 283 cu.in. 1957 blocks. You probably want the 3731539.
 
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