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  #1  
Old August 17th, 2008, 05:58 AM
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Default my old conversion to bbc 402

i ask a while ago about a change to my m 715 i don t think i got the right answers or I am a retard no offence. It was converted to a bbc 402 as far as i can tell about 10 + years ago as far as i know untill i got on the net no one had these i ve seen local ads for m 715 z that said they were just released from the last know companey <ie> fire forest ect mine thanxz to you guys is for sure from a fire department no thanxz to the guy i got it from so the net has so far fed me with info saying these have only been pop for at least a few years my ? z are could a person have converted one themselfs a long time ago? if not how long have these been pop? can one that has been converted this long ago be converted to a sbc 350 or would it be a pain sorry i also have all military running gear beside the bbc and 12 volt bench seat radio and key start <ie> to make it civileran or the fire department did all this i have pics on the sight of my 715 sorry my spelling sucks can any one help me i of course need all the help i can get
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Old August 17th, 2008, 06:11 AM
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Old August 17th, 2008, 06:12 AM
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Old August 17th, 2008, 08:54 AM
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I can't answer that, I've had mine over 20 years. There are F.D.'s here that still have them, sooooooooooooooooooooooooo.
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Old August 17th, 2008, 11:53 AM
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Conversions have been done since at least 1974. Leo Porter in Texas converted over 400 for the Alaska Pipeline construction back then...which included 350 Chevy engines...a 402 not being much different of a swap.

This site has been around 10 years and there were tons of conversions done before that and many more since.
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Old August 17th, 2008, 04:59 PM
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As was said before, . they have been around a while, . . some converted by individuals, others by fire depts. etc. As far as swapping out your 402 for a SBC, that should be relatively easy. Your bell housing and transmission adapters will work, you may need to adjust motor mounts, and your exhaust manifolds will be different. You want to make sure you get all the pulleys and brackets for the SBC, because the ones for the 402 are different.
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Old August 17th, 2008, 05:02 PM
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My truck had the engine removed at least 10 years ago in preparation for a swap which never happened when he had it. It seems that the M715's were put out of Military service pretty quickly and sent off to fire dept's and other government agencies who did what they saw fit to them when necessary.

It looks like what I have seen is that in the mid or later 70's these trucks went to auction to the public, but I am sure Jon would know the answer to that definitively. That leaves a lot of time for plenty of mods to have been done.

I'd wager a bet that some individual did the swap in yours either as a private owner, or possibly even for a fire department. There is a local fire company here that has a 715 brush truck, and a local mechanic keeps it going for them. He did a Dana 60/14 bolt swap, and small block chevy in it 10 or more years ago.
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Old August 17th, 2008, 05:48 PM
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I dont know when the trucks first exited mil service for the auction block but I know by 1977 they were being auctioned...could have been earlier.
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Old August 17th, 2008, 06:24 PM
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cool thanks for all the help was not sure if the motor mounts were diffrent they look stock have not taken a real good look at it sorry i did not relize so many had been converted so easy wish i had more history on it or to know if the f.d in my state had it so i can talk to them i picked this 715 up almost 20 years ago does anyone know why the f.d did not want to keep it prob becuse they get so much cool stuff p.s the locol 715 i saw for sale had the 6 in it it looked all most all stock exept for the red color
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Old August 17th, 2008, 06:34 PM
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Quote:
Originally Posted by jaychevy420pitbill View Post
does anyone know why the f.d did not want to keep it
Most fire departments these days use much more modern equipment. In short, they don't want anything they cannot totally rely on the moment its needed, and a 40 year old truck doesn't fit the bill......Not that the 715 isn't a great truck, but in todays context of fire-fighting, its a dinosaur.
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