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#26 |
Registered User
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Location: weirton WV
Posts: 76
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Re: 72' 402 BB rebuild
no i have not, all of are compressors are run off of CAT or WAUKESHA. pushing 2500-5000 HP
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#27 |
Registered User
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
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Re: 72' 402 BB rebuild
Must be sub-sub-stations then :-)
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1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible |
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#28 |
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Location: Victoria, B.C
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Count me in on the idea of finding a good running 454 and putting that in it....
As stated, these can be picked up pretty inexpensively...often with the TH400 still attached. Make sure you check it out tho'...maybe a quick compression test? Keep us posted on how the search is going. All Good Coley
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....for some men, there is experience, skill and effort....for the others...there is visa and UPS LOL 1966 Chevy 1/2 ton (Florida- Red/white) 1972 Chevy 1/2 ton (California- Blue/white) 2005 Chevy Silverado HD2500/Duramax 2000 Dodge Ram 1500 |
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#29 |
All about them K’s
![]() Join Date: Jun 2014
Location: Land of Entrapment
Posts: 6,392
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Re: 72' 402 BB rebuild
There are 8.1s down here in the San Juan basin, but not to many. The company I work for mainly uses Ajax,arrow, 5.9 cummins, and Waukesha engines. We use Ajax, ingersol, and Quincy compressors.
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Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne: 5” lift, 35’s, front dana 60 blah blah blah… http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB: 4” lift 33”s… in a million pieces http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's |
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#30 |
Registered User
![]() Join Date: Jun 2015
Location: weirton WV
Posts: 76
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Re: 72' 402 BB rebuild
the 454 i looked at today had 96,000 miles and was attached to a rusted out 91'chevy dually for $2300. i passed on it. tore the top half of my engine this evening to get a head start, incase i do not find a local engine in the next couple days. got to have my truck running early next week. i have a siding job to start and it would not lookto good if i show up with my ladders tied to my wife's car lol
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#31 |
Registered User
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Location: weirton WV
Posts: 76
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Re: 72' 402 BB rebuild
cly. walls look very good i think, but the piston heads look like they have a lot of carbon buildup? what do you think? plus i found a some type of rag in the coolant area. all the push rods and lifters look good
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#32 |
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Join Date: Jan 2011
Location: Chattanooga, TN
Posts: 2,151
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Re: 72' 402 BB rebuild
Looks like an OK builder, but there is no way to do a quality rebuild in less than a week.
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'83 K20-TPI '73 C10 '79 C10-ex-diesel(SOLD) '07 Tahoe(Son driving) '14 Suburban-DD '71 C10-current project |
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#33 |
Registered User
![]() Join Date: Jun 2015
Location: weirton WV
Posts: 76
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Re: 72' 402 BB rebuild
I know but I have to get it back on the road for work. Will do a top notch rebuild later.
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#34 |
Registered User
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
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Re: 72' 402 BB rebuild
What are you going to do, clean and new bearings, or what's the actual plan besides removing the rag (!) someone left in the valley?
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1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible |
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#35 |
Registered User
Join Date: Jan 2011
Location: Chattanooga, TN
Posts: 2,151
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Re: 72' 402 BB rebuild
I just could not do that. So much time and effort to take it apart, clean it, put it together, put it in, dress it out, get it running. I would go buy a cheap pickup that you can sell later and do it once and do it right. You appear to be near Pittsburgh. On the Craigslist there is a rusty 78 Scottsdale 4x4 6cyl/3sp for $600 (looks like the bed is off). I would buy something like that to get you by until you can do the 402 right. Another option might be to buy a whole car with a small block and put that in until you can build it. I just could not bring myself to throw bearings in there and put it back in. You may damage it beyond repair with all the shavings floating around that you can't get out.
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'83 K20-TPI '73 C10 '79 C10-ex-diesel(SOLD) '07 Tahoe(Son driving) '14 Suburban-DD '71 C10-current project |
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#36 |
Registered User
![]() Join Date: Jun 2015
Location: weirton WV
Posts: 76
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Re: 72' 402 BB rebuild
Looking at another 454 tomorrow. But I am going to change the crank bearings, cam, lifters , oil pump and push rods for now . and keep an eye on the oil. Looked like a lot of the metal came from the timing gear on the cam. And don't want another truck. Once I get the job done that I have lined up, I'm getting a more suitable truck for construction work.
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#37 |
Registered User
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
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Re: 72' 402 BB rebuild
How does one go about finding a motor that can be cleaned up, maybe the ridge knocked off, but small enough taper that it can be deglazed rather than bored out?
No idea myself, so asking. But I've come across a couple of my own, so it can't be uncommon. I guess they're already apart?
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1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible |
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