BBC into 62 Impala Advice needed.

#1
Hello all,
I have a 62 Impala SS with factory 6cyl engine. She's getting tired and I will be replacing it with a 402 BBC that's already rebuilt and ready to go in. I'm trying to figure out what water pump to use Short/Long since I need to make that decision to order brackets , wiring harness etc. I was leaning towards a short water pump since I'm not sure how the engine will sit in relation to the radiator. My thoughts were to use the short pump and if needed work with fan spacers to get the fan where it needs to be to the shroud etc. I'll be using Sanderson BB1 headers and a Turbo 350 trans so the swap should be pretty smooth... I hope :) Any thoughts from folks that have done this swap .
Thanks
 

Jim Sullivan

Well Known Member
Supporting Member 8
#2
I'm thinking you'll need the short water pump. Also, do you need a specific oil pan to clear the cross member? I'm sure others with more knowledge than I will reply with the correct information.
 

bobs409

 
Administrator
#5
I think the BB is about the same in dimensions as a 409 so stay with short pump. I have a 409 in a 66 Chevelle and I used a stock 396 radiator and shroud. It put the fan blades 1/2 in and 1/2 out like it should be.
 

nana1962409

Well Known Member
Supporting Member 2
#6
I had a 454 in my 62 and I was cheap and ran the long water pump and power steering pump setup that was on it when I got the engine. No way a mechanical fan would fit with the long pump I used a electric one. The pan was the stock one with just a single dip in it and believe it was the original that was on it from the 73 4x4 pickup it came out of.
 

425/409ER

Well Known Member
#10
I did the swap back in 1993, put a 396 in our Biscayne, went pretty good. The biggest problem back then was lack of exhaust manifolds or headers. The Hookers cost too much and the damn pri tubes are too big for street cars and the only manifolds that work were the factory Vette ones otherwise it was a drop and play. Not much different than putting in a 409. Totay there are a lot of shorty headers that take car of all that.
 

63impalass409

 
Supporting Member 1
#11
Ya stay away from the hookers as I did a blown 396 into my kids 62 about 12 years ago and they fit like crap and the collectors dumped right in front of the transmission crossmember so now I believe he has the Sanderson units.
 

Mearl

Well Known Member
Supporting Member 6
#12
I bought a set of ceramic shorty headers for the 61 and tried them with the big block. They wouldn't clear he steering shaft so I had to go back to the side exit headers.
 

425/409ER

Well Known Member
#14
I've got a set of those Hooker "Super Competition" headers, I think they are 2 inch primaries:

View attachment 76837
At one time I was planning on stuffing a 454 BBC in the now BA409 car, but plans change, don't they?

Anyone need a set?

Best, TomK
A few years ago I would have jumped at a chance to get a decent deal on a set of those. This year I was at a swap meet and there sat a set of the Sanderson shorty BBC headers HPC coated for $75 so I scooped them up.
 

Iowa 409 Guy

Well Seasoned Member
Supporting Member 11
#15
Ya stay away from the hookers as I did a blown 396 into my kids 62 about 12 years ago and they fit like crap and the collectors dumped right in front of the transmission crossmember so now I believe he has the Sanderson units.
I put hookers in the Crusher around 1993. They fit well. I had them coated 10 years ago. One of the tubes fell out this year and I cobbled it up to get through the year. Have Wilson's on order.
 
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