Changing from a BBC to SBC - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72armyswbtruck · 03-17-2006, 03:04 PM

OK, I am getting ready to put in a small block crate motor and want to use the newer style mounts and towers, What all will I have to do for this, Also I will be using a 400 tranny, Any suggestions? Thanks
Michael

*Billla* · 03-17-2006, 03:37 PM

Quote:

Originally Posted by 72armyswbtruck

OK, I am getting ready to put in a small block crate motor and want to use the newer style mounts and towers, What all will I have to do for this, Also I will be using a 400 tranny, Any suggestions? Thanks
Michael

I take it you sold your BBC? Man, I hated missing out on that

72armyswbtruck · 03-17-2006, 08:39 PM

Nope I still have it, don't worry, if the other guy doesn't buy it, I will still have it for a little while and YES IT IS STLL FOR SALE, check the for sale post.

corn · 03-17-2006, 08:50 PM

I had the 396 out of my '69 for a while & had a 350 in it with a 400th. It was a direct bolt in. I dont know anything about how exhaust manifolds fit because I was running chevelle headers...corn

72armyswbtruck · 03-17-2006, 08:58 PM

What about the drive shaft? And did you have to move the motor mounts forward or backwards? Did you use the newer style motor mounts?

corn · 03-17-2006, 10:38 PM

I pulled one engine out & bolted the other one in. Unbolted the motor mounts from the BBC, bolted them on SBC. Thats it...

low'n slow · 03-17-2006, 11:10 PM

I went the other way with my 78 K20. 350 to 454. required new exhaust head pipes and I had to lose the fan surround. I used the small block towers and mounts. Everything fit fine.

72armyswbtruck · 03-18-2006, 12:22 AM

Sweet, I think then that I might just keep these $200 set of 72 engine mounts and use them for the truck instead of selling them. I don't know though, $200 bones is $200 bones

HeavyD · 03-18-2006, 01:58 AM

Swap the mounts. Like you said they are worth something, and sb stands and mounts are dirt cheap. Use the extra $$ to buy other parts you need.

03-17-2006, 03:04 PM	#1
72armyswbtruck Registered User Join Date: Feb 2004 Location: Idaho Posts: 4,034	Changing from a BBC to SBC OK, I am getting ready to put in a small block crate motor and want to use the newer style mounts and towers, What all will I have to do for this, Also I will be using a 400 tranny, Any suggestions? Thanks Michael __________________ "Remember, They can Kill You, but they can't eat You, That's against the law!!!!!!!!!"

03-17-2006, 08:39 PM	#3
72armyswbtruck Registered User Join Date: Feb 2004 Location: Idaho Posts: 4,034	Re: Changing from a BBC to SBC Nope I still have it, don't worry, if the other guy doesn't buy it, I will still have it for a little while and YES IT IS STLL FOR SALE, check the for sale post. __________________ "Remember, They can Kill You, but they can't eat You, That's against the law!!!!!!!!!"

03-17-2006, 08:50 PM	#4
corn Registered User Join Date: Dec 2003 Location: here Posts: 5,789	Re: Changing from a BBC to SBC I had the 396 out of my '69 for a while & had a 350 in it with a 400th. It was a direct bolt in. I dont know anything about how exhaust manifolds fit because I was running chevelle headers...corn

03-17-2006, 08:58 PM	#5
72armyswbtruck Registered User Join Date: Feb 2004 Location: Idaho Posts: 4,034	Re: Changing from a BBC to SBC What about the drive shaft? And did you have to move the motor mounts forward or backwards? Did you use the newer style motor mounts? __________________ "Remember, They can Kill You, but they can't eat You, That's against the law!!!!!!!!!"

03-17-2006, 10:38 PM	#6
corn Registered User Join Date: Dec 2003 Location: here Posts: 5,789	Re: Changing from a BBC to SBC I pulled one engine out & bolted the other one in. Unbolted the motor mounts from the BBC, bolted them on SBC. Thats it...

03-17-2006, 11:10 PM	#7
low'n slow Too Dumb To Know Better Join Date: Nov 2005 Location: Texas Posts: 882	Re: Changing from a BBC to SBC I went the other way with my 78 K20. 350 to 454. required new exhaust head pipes and I had to lose the fan surround. I used the small block towers and mounts. Everything fit fine.

03-18-2006, 12:22 AM	#8
72armyswbtruck Registered User Join Date: Feb 2004 Location: Idaho Posts: 4,034	Re: Changing from a BBC to SBC Sweet, I think then that I might just keep these $200 set of 72 engine mounts and use them for the truck instead of selling them. I don't know though, $200 bones is $200 bones __________________ "Remember, They can Kill You, but they can't eat You, That's against the law!!!!!!!!!"

03-18-2006, 01:58 AM	#9
HeavyD Senior Member Join Date: Sep 2004 Location: Wakaw, Sask, Canada Posts: 3,180	Re: Changing from a BBC to SBC Swap the mounts. Like you said they are worth something, and sb stands and mounts are dirt cheap. Use the extra $$ to buy other parts you need. __________________ "You can take the man out of PA, but you can't take PA out of the man"

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