Need help with engine numbers matching

Technical Question and Answer - On topic to 71-74 Plymouth B-bodies only.

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NOrrTH
GTX (RS)
Posts: 208
Joined: Sun Aug 16, 2009 2:46 pm
Location: Nanaimo, BC, Cda

Re: Need help with engine numbers matching

Post by NOrrTH » Tue Aug 25, 2009 1:47 pm

landon1 wrote:they made a 741? i've only heard of 742 and 489.
Ya, its a 741. Apparently they put them in "A" bodies. Now I'm worried its going to blow if I stomp on it.
'71 GTX N96
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landon1
GTX (RS)
Posts: 1394
Joined: Tue Dec 27, 2005 10:22 pm
My Cars: 1971 Plymouth Satellite Sebring
Location: Colfax, IA

Re: Need help with engine numbers matching

Post by landon1 » Tue Aug 25, 2009 8:20 pm

i wouldn't worry - my car still has the "weak" 8.25" rear end behind my 440 with no problems :beer:
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1bluegtx
GTX (RS)
Posts: 268
Joined: Fri May 06, 2005 1:05 am

Re: Need help with engine numbers matching

Post by 1bluegtx » Tue Aug 25, 2009 10:53 pm

NOrrTH wrote:wow, dam thats helpful. Definitely an 8 3/4 but with a 741 third member. I read it should be a 742 or 489. Hope its not going to blow on me :(
Dont worry about it,plenty strong.Ran one behind 500 horsepower for years,the ring gear finally busted not the pinion.

BRIAN
Its not numbers matching
It doesn't run on pump gas
And it doesn't purr like a kitten
11.73 at 115mph
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