402 BBC accessory brackets

[General23cmp]

Putting a 454 in my truck from a 70 Chevelle. The brackets are obviously different (AC on wrong side, etc). Has anyone researched what model trucks/cars have the same brackets as an original 72 402 truck would've had? I would like this to look like a 402, but brackets specific to 72 trucks aren't easy to find or cheap. If a 73 Monte Carlo, for example, had the same brackets, that'd be good to know. I know my Chevelle water pump isn't right too.

[leddzepp]

68-72 trucks and pre-68(?) cars used short water pump brackets on big blocks. They are actually easier to find on trucks than cars.

[davepl]

As a bit of trivia/info, did the small blocks switch to passenger side alternator in '69 to match the cars? Or did they stay in pre-69 configuration like the big blocks?

[General23cmp]

Originally Posted by leddzepp

68-72 trucks and pre-68(?) cars used short water pump brackets on big blocks. They are actually easier to find on trucks than cars.

So are the brackets the same on the early BB cars, compared to our trucks, or just similar?

[leddzepp]

Correct Alternator brackets for a big block 402 truck from 72 are 1 year only, however other years will work. Power steering and AC brackets are the same. In 68 the BB power steering reservoir had a bracket that mounted it off the fender.

[Ekliptix]

i bought a big block accessory kit setup from the junkyard. Same thing, found the AC and alternator were on different sides then stock for my 72. I ended up the big block brackets from http://www.alangrovecomponents.com/Catalog.htm, including the PS pump bracket, crank pulley and water pump pulley. Oh, and ordered a new Sanden 508 style AC compressor.

The Alan Grove ppl know what they're talking about so give them a call if you're unsure which parts you need from them.

[General23cmp]

Will a modern style AC compressor (vintage air) fit those brackets? How about an alternator I can get at autozone?

[leddzepp]

No, only the factory a-6 compressor or the aftermarket pro6-ten will fit factory brackets. They will not hold a sanden style compressor

[Mike C]

Cars went to long pump in 69 and alternator swapped sides then is correct.

For the 427 I am building I am using brackets for a 68 Camaro 375/396 that are all deep groove. Currently will try mounting the car PS pump but that may change... There is a reason the truck had the remote reservoir.