Big Block Swap???
#11
MOOBIES Moderator
iTrader: (6)
It's been done. I know the V6's use the same mounts as a SBC, and I'm pretty sure that SBC's and BBC's use the same mounts as well, so it shouldn't be hard at all. Maybe start researching in that direction. Oil pan clearance and header fitment might be issues, but I'm sure it's nothing that can't be worked around. I wouldn't even think about bolting the 60-e up to a BBC....I would look into an 80-e since they came behind BBC's in the early 90's.
As far as asking why...who cares?? A 572 crate motor and some spray would make for an awesome ride. And it would sound oh so sweet!
Good luck with it, and post pics if this is the route that you decide to take.
As far as asking why...who cares?? A 572 crate motor and some spray would make for an awesome ride. And it would sound oh so sweet!
Good luck with it, and post pics if this is the route that you decide to take.
#12
TECH Apprentice
I know this is an extremely old post but no the new 4.3L and the old small block and big blocks don’t use the same Engine mounts the new 4.3s use the same 4 mounting holes as the LS engines not the 3 hole as the SBC\BBC
#13
TECH Enthusiast
iTrader: (5)
Hey Guys,
I have a 2006 GMC Sierra RCSB 5.3L w/ 4L60E trans. I'm wondering if swapping in a BBC is possible. I know I'd have to modify the fuel system, cooling system, ignition system, exhaust system, but I'm wondering what else would be needed. Would I need to change engine mounts? Will the 4L60E bolt up to a BBC? Thanks Guys!
I have a 2006 GMC Sierra RCSB 5.3L w/ 4L60E trans. I'm wondering if swapping in a BBC is possible. I know I'd have to modify the fuel system, cooling system, ignition system, exhaust system, but I'm wondering what else would be needed. Would I need to change engine mounts? Will the 4L60E bolt up to a BBC? Thanks Guys!
#14
TECH Senior Member
iTrader: (20)
This post is terribly old but it does get the gearing turning. 408 would be laughable compared to a BBC. You can overbore them .125 and not break a sweat. Times have changed so much. It's hard to believe the sun has set on the BBC. I remember getting picked up from school by my father everyday with a BB thumping along under the hood. I remember the throttle being pinned and that A body coming around sideways. That is where it all started for me. HAHA. Those were the times. We even had AC in that car.
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#16
Yea so I am new here and pretty old school. I have owned many BBC muscle cars and trucks. I wanted to recreate the SS 454 in a 2005 short bed stepside body. What a total nightmare I have gotten into. I wish I would have read all these texts B4 I started. So I REALLY want to talk to whoever has completed this crazy idea. Currently the 454 is built to 525 HP, 9.7 to 1. Totally blacked out truck with SS nose- black billlet grille- 20" wheels- roll pan- etc. The truck body and interior are perfect and running w/a 6cyl. in it Glad I have stopped. Need a bit of advice here!!!!
#17
TECH Fanatic
iTrader: (1)
Yea so I am new here and pretty old school. I have owned many BBC muscle cars and trucks. I wanted to recreate the SS 454 in a 2005 short bed stepside body. What a total nightmare I have gotten into. I wish I would have read all these texts B4 I started. So I REALLY want to talk to whoever has completed this crazy idea. Currently the 454 is built to 525 HP, 9.7 to 1. Totally blacked out truck with SS nose- black billlet grille- 20" wheels- roll pan- etc. The truck body and interior are perfect and running w/a 6cyl. in it Glad I have stopped. Need a bit of advice here!!!!
That is your best bet to getting the help you need
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