weight differece sbc vs. bbc
06-11-2008, 09:17 PM
Junior Member
SHOW GUEST
Thread Starter
Join Date: Aug 2006
Posts: 1
weight differece sbc vs. bbc
Trying to figure out what do you guys think the weight difference between a aluminum block 737bbc with splits to a iron eagle block 434 with two carbs. I hope it is around 200 pounds as the motor is way smaller. What do you guys think
06-11-2008, 10:46 PM
Senior Member
RACING JUNKIE
Join Date: Sep 2007
Posts: 4,137
A cast iron BBC block is around 270 lbs or so...just the block. A aluminum head is between 37 and 42 lbs and a cast Iron head is about 70 lbs...not sure about an aluminum block and the internals.
06-12-2008, 05:18 AM
Member
JUNIOR BUILDER
Join Date: Jul 2003
Location: U.S.A.
Posts: 80
I have a bare SBC block and a bare BBC block w/ the center main caps missing in the garage.
The SBC weighs approx. 155 lbs.
The BBC Block weighs approx. 200 lbs.
I've never weighed a complete version of either but I think a 200 lb. difference is realistic.
06-12-2008, 06:36 AM
Senior Member
EXPERT BUILDER
Join Date: Jan 2007
Location: atwood,Ky
Posts: 302
i was always told that there is 150lb differance in a small to big but i'm not sure if thats correct.i hope so cause i'm going big this year. good luck
06-12-2008, 08:54 AM
Senior Member
RACING JUNKIE
Join Date: May 2003
Location: Coldwater, MI
Posts: 2,998
I swapped from SBC with dart little m to BBC with dart big m. I gained 100lbs exactly. This was actual weight with everything in/on the motors in the car.
06-12-2008, 11:10 AM
Senior Member
EXPERT BUILDER
Join Date: Jan 2007
Location: atwood,Ky
Posts: 302
cool hopfully thats all mine will be,but my luck it will gain 300lb,NOT THE DRIVER the car
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off