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#'s 440 to a '71 Plymouth here?
Posted: Tue Nov 03, 2009 2:34 pm
by TX9GTXN96
This block is supposedly out of a '71 V-code RR, looks like a '71 St. Louis car 1G150102...
http://cgi.ebay.com/ebaymotors/RARE-Mop ... 20add5cd71
Re: #'s 440 to a '71 Plymouth here?
Posted: Thu Dec 10, 2009 10:30 am
by 268RTs4me
Tne 1 means 71 the G is St Louis Plant, the rest of the #s are the Serial #s of the car or VIN. What is the casting # on the side of the block raised #s?
Re: #'s 440 to a '71 Plymouth here?
Posted: Thu Dec 10, 2009 2:19 pm
by NOrrTH
From what Ive read on 440Source and the Moparts forums, there is no difference in 440 blocks whether they are HP or 6pack, only the parts that went into them.
Re: #'s 440 to a '71 Plymouth here?
Posted: Thu Dec 10, 2009 3:44 pm
by RS23-71
I always thought the HP and 6-pack motors all used the same internals as well... the heavier forged crank and rods I thought the difference is what is on top of the motor. A six pack block like that seems like it would only be valuable to the car it came from. (matching #s)
Re: #'s 440 to a '71 Plymouth here?
Posted: Thu Dec 10, 2009 7:26 pm
by 71440 gtx
a 70 440 hp 440 4bbl has 9.7.1 flat top pistons
71 440 hp 440 4 bbl has 9.5.1flat top pistons
70 440hp 440 6bbl has 10.5.1 flat top pistons with 4 relief valves
71 440hp 440 6bbl has 10.3.1 flat top pistons with 4 relief valves
Re: #'s 440 to a '71 Plymouth here?
Posted: Thu Dec 10, 2009 7:34 pm
by RS23-71
ah yes forgot about the pistons but thats about the only difference right?
Re: #'s 440 to a '71 Plymouth here?
Posted: Thu Dec 10, 2009 7:48 pm
by 71440 gtx
268RTs4me wrote:Tne 1 means 71 the G is St Louis Plant, the rest of the #s are the Serial #s of the car or VIN. What is the casting # on the side of the block raised #s?
1 21 70 hud
1971 block aug 1970 to july 71
Re: #'s 440 to a '71 Plymouth here?
Posted: Thu Dec 10, 2009 7:49 pm
by 71440 gtx
RS23 '71 wrote:ah yes forgot about the pistons but thats about the only difference right?
yes
Re: #'s 440 to a '71 Plymouth here?
Posted: Fri Dec 11, 2009 1:06 pm
by TX9GTXN96
Nope, the 440+6 engine also used a cam that used 3 bolts that retained the timing gear.
I posted what the guy said about it supposedly coming out of a V-code car. Without matching up the sequence # to a known car, we will never know for sure what it originally came out of. One thing for certain though, it was either a U or V-code GTX or a 6bbl RR. Did they make RT Chargers and Superbees at the St.Louis plant in '71?
Re: #'s 440 to a '71 Plymouth here?
Posted: Fri Dec 11, 2009 2:27 pm
by 71440 gtx
opps the cam
Superbees at the St.Louis plant in '71
yes