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#1 |
Registered User
Join Date: May 2007
Location: north carolina
Posts: 80
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anyone running bb402?
i was wondering if any body is running a bb402. i have a chance to get a complete motor for $300. of course it needs a rebuild. is that a good deal? i have heard they are not very reliable and have weak connecting rods. i had never heard of this motor so i looked around and year one says '70 is the last or only year it was avaliable in these trucks and mine is a '70 so i thought it might be a cool motor to use, and they say it has 375 hp stock. but since i dont know have much knowledge about mechanics i want something with low mantenance.anyone with experience with these motors pls help.
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#2 |
Registered User
![]() Join Date: Oct 2006
Location: Southern Kalifornia
Posts: 3,066
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Re: anyone running bb402?
I have had seceral 402's. They are a GREAT engine. All it is, is a 396 BBC bored .030 from the factory. Maintaning any engine depends on how it gets used. But I like the 402. If you are looking to build a Big Block then you may want to concider a 454 they cost about the same and make more power for the same dollar. JMO though.
-Lance
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------------------------------------------------------ -Lance 2000 Chevy C2500, 5.7, 4L80e 1999 Suburban K2500, 7.4, 4L80e 1980 Camaro..son's car...PROJECT |
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#3 |
It's the air up here
Join Date: Mar 2007
Location: Western Colorado
Posts: 710
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Re: anyone running bb402?
Thats a fair price, if its in good buildable shape. 402's I think were offerd in 70 and 71 only. I could be wrong, but it was only a couple of years. Like Manimal said it is a 396 bored .30 over at the factory. I have one out of a 71 truck that I rebuilt and run in a 79 GMC. Strong motor, very good. Plus era correct, unlike the 454BB.
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1971 cheyenne k10 4 speed np 205 454 BB factory a/c ![]() Never drink down stream of the herd! Eric |
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#4 |
Senior Member
![]() Join Date: Apr 2000
Location: madison indiana
Posts: 3,839
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Re: anyone running bb402?
i got a factory 72 big block truck which came from factory with a 402, i loveed that motor, i ran the crap out of it, and it took it,its setting in the garage waiting for a rebuilt as i`m restoring the whole truck.
i would pick up the motor for 300 in a heartbeat, if its complete with brackets.
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jamie72 72 BB cheyenne -- Restoration getting started.. member #807 http://www.myspace.com/whitetailobsession www.antlertalk.com |
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#5 |
Registered User
Join Date: Jun 2005
Location: Midlothian, VA
Posts: 148
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Re: anyone running bb402?
If the block and heads are in good shape, $300 is a good deal. Are you going to rebuild it, or pay someone to do the work? What do you have under the hood now? I don't deny that the 402 isn't a fine capable motor, but the cost of going from a small block to a big block (Motor mounts, radiator and shroud, and etc.). Sorry, just playing the devils advocate.
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#6 |
Senior Member
Join Date: Feb 2005
Location: Maynardville, Tn
Posts: 3,030
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Re: anyone running bb402?
402's are great engines. I've had several and am building one now to go in my ton project. If your doing it for a driver, you'll be a lot happier with the 402, if your going to do a lot of pulling I would consider the 454. $300 for a buildable core is a very good price.
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#7 |
Registered User
Join Date: May 2007
Location: north carolina
Posts: 80
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Re: anyone running bb402?
i am building the truck from scratch so i am not set up for anything its kinda like a blank canvas. what engine would u guys use if u were starting from nothing? i want a big block and also want at least 400 hp unfortunatly i am on a tight budget. what would be my best route to take? and thanks for the info so far
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#8 |
Registered User
Join Date: Dec 2003
Location: here
Posts: 5,789
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Re: anyone running bb402?
If money is tight & you want big block torque, get a 400 small block. A bunch cheaper to get on the road & with the hood closed you would swear u have a big block under it.
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