BBC info - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**53burb** · 03-31-2007, 07:27 PM

I finally decided on an engine for '69 2WD 1/2 ton Burb. It is going to be 454. I am knew to the BBCs. Any general info as far as mounting this thing up that you guys can give is appreciated. I believe it currently has the tall valve covers. I need short valve covers correct?? I will be using a brake booster from a 72 3/4ton. It also has roller rockers, so are short valve covers still an option with those rockers?? Also, I have already installed the front crossmember/suspension in from a '77 Chevy 1/2ton 2WD. Can I use those engine stands with the 454, & just use BBC motor mounts?? One more question - Which is a better combo?? a 454 with a 400 tranny & a 3.73 posi with 295/50/15s (26.6 inches) or that may eventually have a 700 or same combo but keep the 400 with 3.08 gears. I understand that BBCs usually have enough low end torque to compensate for the highway gears. The truck will be probably be a 60/40 split from highway to city driving with the 60% being city.

http://www.slide.com/r/8iz4dbUr5j-_P...d_embedded_url

*rage'nrat638* · 03-31-2007, 07:46 PM

you will be needing those tall valve covers.. with roller rockers

they make a smaller booster that will work..

400's are great transmissions.

the bbc does need to sit different in the engine bay.

check out the FAQ section. your questions can be found there for sure

sounds like a GREAT MOVE.. you will love the big block.. they rock

**53burb** · 04-02-2007, 09:02 PM

Thanks for the info...I will check out the FAQ section.....hopefully it will do pretty good...It has Edelbrock Performer heads/roller rockers, & TBI injection converted to multiport injection with the Edelbrock kit. It also has a CC 262 cam. Still undecided if I want to yank & sell the fuel injection stuff & go with a larger cam & carburator...decisions, decisions, any input?? The only thing I think I need for the fuel injection is a new chip & fuel pump. He already has Edelbrock headers on it, but I am not sure if they will fit yet. He is including his existing computer & wire harness in the deal. I assume the O2 sensor is in one of the headers, we will see on Saturday. That is when I will pick it up.

**clay68c10** · 04-02-2007, 09:34 PM

Use the EFI. I just have a stock TBI and it was by far the best mod I've ever done. The throttle response and drivability are so much better than a carb.
Are they full roller rockers or just roller tips? If they're just roller tips you can probably run the short valve covers. I have comp roller tips and no clearance problems with the short covers.

**53burb** · 04-03-2007, 12:23 PM

I believe they are full roller rockers. I will find out for sure on Saturday. I am hoping they are only roller tip, I don't want to have to use a 1/2ton power brake booster. I don't suppose CC roller tips from a small block are the same for a big block. I will have to look that up....

Frizzle Fry · 04-03-2007, 12:34 PM

Some info for ya here: 476 Install Thread

Also, I have full rollers with a 3/4ton booster. The M/T valve covers just had to have the 'oil deflectors' (pointy things inside) removed.

**53burb** · 04-03-2007, 01:02 PM

Thanks for the info Frizzle Fry....This is the kinda info I miss out on because I can't keep up with working & reading all this info on my off time. I was reading all this info, even going back & catching up on the posts if I missed a few days...can't do it anymore.....

Didn't I read earlier that you work for Intel in Oregon?? I work for Air Products at Intel F12/22/32 in Chandler, AZ.

70rs/ss · 04-03-2007, 01:56 PM

I am here in az and can help a little on the advice part, just PM me and we can communicate that way, so you don't have to keep tracking threads! I use full roller rockers with a short valve cover, just glue one gasket on top of another, and they'll clear, you can still use the factory AC with tha set-up as well.

Good Luck.

Frizzle Fry · 04-03-2007, 02:55 PM

Quote:

Originally Posted by 53burb

Thanks for the info Frizzle Fry....This is the kinda info I miss out on because I can't keep up with working & reading all this info on my off time. I was reading all this info, even going back & catching up on the posts if I missed a few days...can't do it anymore.....

Didn't I read earlier that you work for Intel in Oregon?? I work for Air Products at Intel F12/22/32 in Chandler, AZ.

No prob and yes, I work at In-hell D1C/D1D for AMAT. Funds all this truck addiction...

**53burb** · 04-03-2007, 08:39 PM

Hey thanks for the help Frizzle Fry & 70rs/ss & I will also send you a PM....

03-31-2007, 07:27 PM	#1
53burb Registered User Join Date: May 2004 Location: Queen Creek, AZ Posts: 1,004	BBC info I finally decided on an engine for '69 2WD 1/2 ton Burb. It is going to be 454. I am knew to the BBCs. Any general info as far as mounting this thing up that you guys can give is appreciated. I believe it currently has the tall valve covers. I need short valve covers correct?? I will be using a brake booster from a 72 3/4ton. It also has roller rockers, so are short valve covers still an option with those rockers?? Also, I have already installed the front crossmember/suspension in from a '77 Chevy 1/2ton 2WD. Can I use those engine stands with the 454, & just use BBC motor mounts?? One more question - Which is a better combo?? a 454 with a 400 tranny & a 3.73 posi with 295/50/15s (26.6 inches) or that may eventually have a 700 or same combo but keep the 400 with 3.08 gears. I understand that BBCs usually have enough low end torque to compensate for the highway gears. The truck will be probably be a 60/40 split from highway to city driving with the 60% being city. http://www.slide.com/r/8iz4dbUr5j-_P...d_embedded_url Last edited by 53burb; 03-31-2007 at 07:28 PM. Reason: forgot a word

03-31-2007, 07:46 PM	#2
rage'nrat638 Account Suspended Join Date: Mar 2003 Location: THE FALL GUY CHICAGO IL Posts: 5,883	Re: BBC info you will be needing those tall valve covers.. with roller rockers they make a smaller booster that will work.. 400's are great transmissions. the bbc does need to sit different in the engine bay. check out the FAQ section. your questions can be found there for sure sounds like a GREAT MOVE.. you will love the big block.. they rock

04-02-2007, 09:02 PM	#3
53burb Registered User Join Date: May 2004 Location: Queen Creek, AZ Posts: 1,004	Re: BBC info Thanks for the info...I will check out the FAQ section.....hopefully it will do pretty good...It has Edelbrock Performer heads/roller rockers, & TBI injection converted to multiport injection with the Edelbrock kit. It also has a CC 262 cam. Still undecided if I want to yank & sell the fuel injection stuff & go with a larger cam & carburator...decisions, decisions, any input?? The only thing I think I need for the fuel injection is a new chip & fuel pump. He already has Edelbrock headers on it, but I am not sure if they will fit yet. He is including his existing computer & wire harness in the deal. I assume the O2 sensor is in one of the headers, we will see on Saturday. That is when I will pick it up.

04-02-2007, 09:34 PM	#4
clay68c10 Senior Member Join Date: Aug 2004 Location: Centennial, CO Posts: 2,935	Re: BBC info Use the EFI. I just have a stock TBI and it was by far the best mod I've ever done. The throttle response and drivability are so much better than a carb. Are they full roller rockers or just roller tips? If they're just roller tips you can probably run the short valve covers. I have comp roller tips and no clearance problems with the short covers. __________________ ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ

04-03-2007, 12:23 PM	#5
53burb Registered User Join Date: May 2004 Location: Queen Creek, AZ Posts: 1,004	Re: BBC info I believe they are full roller rockers. I will find out for sure on Saturday. I am hoping they are only roller tip, I don't want to have to use a 1/2ton power brake booster. I don't suppose CC roller tips from a small block are the same for a big block. I will have to look that up....

04-03-2007, 12:34 PM	#6
Frizzle Fry Registered User Join Date: Aug 2005 Location: Hillsboro Oregon Posts: 6,449	Re: BBC info Some info for ya here: 476 Install Thread Also, I have full rollers with a 3/4ton booster. The M/T valve covers just had to have the 'oil deflectors' (pointy things inside) removed. Last edited by Frizzle Fry; 04-03-2007 at 12:35 PM.

04-03-2007, 01:02 PM	#7
53burb Registered User Join Date: May 2004 Location: Queen Creek, AZ Posts: 1,004	Re: BBC info Thanks for the info Frizzle Fry....This is the kinda info I miss out on because I can't keep up with working & reading all this info on my off time. I was reading all this info, even going back & catching up on the posts if I missed a few days...can't do it anymore..... Didn't I read earlier that you work for Intel in Oregon?? I work for Air Products at Intel F12/22/32 in Chandler, AZ.

04-03-2007, 01:56 PM	#8
70rs/ss Registered User Join Date: Dec 2004 Location: Northern AZ Posts: 7,271	Re: BBC info I am here in az and can help a little on the advice part, just PM me and we can communicate that way, so you don't have to keep tracking threads! I use full roller rockers with a short valve cover, just glue one gasket on top of another, and they'll clear, you can still use the factory AC with tha set-up as well. Good Luck.

04-03-2007, 08:39 PM	#10
53burb Registered User Join Date: May 2004 Location: Queen Creek, AZ Posts: 1,004	Re: BBC info Hey thanks for the help Frizzle Fry & 70rs/ss & I will also send you a PM....



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