Putting a 454 in, help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ZombieWeinerDog · 05-20-2009, 10:14 AM

I have all parts for a 454 build, except for a block... what do i need on my truck to convert to a big block? it has all original driveshaft, 3 spd tranny, ect.

'72customdeluxe · 05-20-2009, 04:26 PM

Motor mounts, putting the mounting plates in the big block position unless you don't care how the headers fit, clutch upgrade?

ZombieWeinerDog · 05-20-2009, 06:44 PM

anybody else? i know i need a bigger radiator to.

'72customdeluxe · 05-21-2009, 03:40 PM

What kind do you have now? You shouldn't really need one

ZombieWeinerDog · 05-21-2009, 09:41 PM

Quote:

Originally Posted by '72customdeluxe

What kind do you have now? You shouldn't really need one

an aluminum one from LMC i think. its not made for the heat of a big block, says my step dad, who is an "expert" at this stuff

'72customdeluxe · 05-22-2009, 10:16 PM

??? Just run water ,water wetter, and some electric fans if it gets hot. It should be fine. It's all in the details of the motor. A nice 383 will put out more heat than a smogger 454. It's all in your combo

**clay68c10** · 05-22-2009, 10:50 PM

I don't know how strong those 3spd trans are, maybe it'll live and maybe not.
You won't know on the drive shaft length until you have the eng/trans situated.

05-20-2009, 10:14 AM	#1
ZombieWeinerDog Registered User Join Date: Oct 2008 Location: Sparta, MI Posts: 446	Putting a 454 in, help I have all parts for a 454 build, except for a block... what do i need on my truck to convert to a big block? it has all original driveshaft, 3 spd tranny, ect. __________________ 1972 longbed- 454 1967 shortbed- 355

05-20-2009, 04:26 PM	#2
'72customdeluxe Registered User Join Date: Jan 2008 Location: Tejas Posts: 691	Re: Putting a 454 in, help Motor mounts, putting the mounting plates in the big block position unless you don't care how the headers fit, clutch upgrade? __________________ '72 cheyenne super step, '05 long bed gmc

05-20-2009, 06:44 PM	#3
ZombieWeinerDog Registered User Join Date: Oct 2008 Location: Sparta, MI Posts: 446	Re: Putting a 454 in, help anybody else? i know i need a bigger radiator to. __________________ 1972 longbed- 454 1967 shortbed- 355

05-21-2009, 03:40 PM	#4
'72customdeluxe Registered User Join Date: Jan 2008 Location: Tejas Posts: 691	Re: Putting a 454 in, help What kind do you have now? You shouldn't really need one __________________ '72 cheyenne super step, '05 long bed gmc

05-22-2009, 10:16 PM	#6
'72customdeluxe Registered User Join Date: Jan 2008 Location: Tejas Posts: 691	Re: Putting a 454 in, help ??? Just run water ,water wetter, and some electric fans if it gets hot. It should be fine. It's all in the details of the motor. A nice 383 will put out more heat than a smogger 454. It's all in your combo __________________ '72 cheyenne super step, '05 long bed gmc

05-22-2009, 10:50 PM	#7
clay68c10 Senior Member Join Date: Aug 2004 Location: Centennial, CO Posts: 2,990	Re: Putting a 454 in, help I don't know how strong those 3spd trans are, maybe it'll live and maybe not. You won't know on the drive shaft length until you have the eng/trans situated. __________________ 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

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