found a 74 motorhome W/440 should be forged...right?

Posted By: coronet1966d

found a 74 motorhome W/440 should be forged...right? - 09/05/09 06:24 PM

just located a beat but running driving low milage 1974 motorhome with a 440. they used forged internals on the truck/RV stuff in 74 didnt they? anything i should be aware of or look for while scoping out RV motors?

Posted By: MNobody

Re: found a 74 motorhome W/440 should be forged...right? - 09/05/09 06:43 PM

Look at the Dampner, a thick one is usualy a cast crank and the thinner one is forged.

Posted By: dOc !

Re: found a 74 motorhome W/440 should be forged...right? - 09/05/09 07:16 PM

Way MORE than likely a forged crank ..

Any other usable parts on it .. like a frig, roof air...etc ?

Posted By: Anonymous

Re: found a 74 motorhome W/440 should be forged...right? - 09/05/09 07:21 PM

Quote:

Any other usable parts on it ..

Don't they usually have the more desirable lower gear sets in the trans?

Posted By: dOc !

Re: found a 74 motorhome W/440 should be forged...right? - 09/05/09 08:08 PM

I have heard RUMORS that some truck/motorhome chassis were equipped with a trans that had a 2.77 gear set .. but I have never seen one like that.

MOST motorhomes were WAY over-geared to start off with. Some Class A's having as much as a 4.88 ..some even with a 5.12.

Posted By: DCI

Re: found a 74 motorhome W/440 should be forged...right? - 09/05/09 10:06 PM

Last two 440 I bought out of Titan MH's were cast crank motors.

Posted By: coronet1966d

Re: found a 74 motorhome W/440 should be forged...right? - 09/05/09 10:29 PM

yeah it has a fridge and it works the guy put new brake boosters in it new manifolds new exhaust ect

Posted By: vdriver

Re: found a 74 motorhome W/440 should be forged...right? - 09/06/09 01:40 AM

I've pulled a few '74 MH 440's over the years (just tore one down last week..) and they all had forged cranks & the heavy six-pack type rods. Some even came with a windage tray.

Posted By: Thackdaddy

Re: found a 74 motorhome W/440 should be forged...right? - 09/06/09 02:24 AM

Quote:

I've pulled a few '74 MH 440's over the years (just tore one down last week..) and they all had forged cranks & the heavy six-pack type rods. Some even came with a windage tray.

Yep, a friend scored one of those, HP rods, windage tray and double chain.

Posted By: coronet1966d

Re: found a 74 motorhome W/440 should be forged...right? - 09/06/09 06:52 AM

any idea what heads will be on it and what compression ratio?

Posted By: coronet1966d

Re: found a 74 motorhome W/440 should be forged...right? - 09/06/09 08:43 PM

guesses?

Posted By: RUNCHARGER

Re: found a 74 motorhome W/440 should be forged...right? - 09/06/09 08:46 PM

Compression ratio will be about 7.5-1 measured.

Sheldon

Posted By: Pacnorthcuda

Re: found a 74 motorhome W/440 should be forged...right? - 09/06/09 08:47 PM

213 heads. Comp ratio? Are you going to calculate? I'll say 7.8

Posted By: scratchnfotraction

Re: found a 74 motorhome W/440 should be forged...right? - 09/07/09 02:23 AM

mine had 452 heads

what kinda plug is in the head??...

Posted By: pnypwr

Re: found a 74 motorhome W/440 should be forged...right? - 09/07/09 02:30 AM

Ive had two, still got one, both were cast crank motors...the one I got is low mileage, the other was froze up tight! both were 73 vintage class a motor homes.

Posted By: coronet1966d

Re: found a 74 motorhome W/440 should be forged...right? - 09/07/09 04:28 AM

i havnt looked at it yet. its a 1974 30 footer and its painted like the mystery machine

Posted By: scratchnfotraction

Re: found a 74 motorhome W/440 should be forged...right? - 09/07/09 10:54 AM

that will make a cool parts shed when you get the 440 out

Posted By: QuickBpBp

Re: found a 74 motorhome W/440 should be forged...right? - 09/07/09 01:38 PM

Quote:

mine had 452 heads

what kinda plug is in the head??...

My 75 Motor home motor I picked up had 452's too and a cast crank. It was cheap and the top end was fresh & ran great...