Big Block Install Problems - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Danny Bost · 07-13-2018, 07:46 PM

Hi

My truck was originally a 350 with a 3 speed. Then the PO converted it to an automatic. That was it’s configuration when I got it 15 years ago. Now I am putting a 454 with a manual trans in the truck. I bought big block stands off of a board member and big block mounts from the parts store. Now for the problem, when I try to put the 454 in it the ball for the clutch pivot is about 2 inches too far back. Any idea what is happening? Any ideas would be appreciated.
Thanks Danny

**kwmech** · 07-13-2018, 08:52 PM

Do you have the big block clutch pivot bracket or did you screw the ball stud into the block?

Danny Bost · 07-13-2018, 08:55 PM

I have the pivot ball screwed into the block. However if I was to just move the ball it would be in the center of one of my header tubes.

**68bowtie** · 07-13-2018, 08:58 PM

Could be the engine stands are in the wrong bolt holes too far back.

Danny Bost · 07-13-2018, 09:02 PM

The stands are in the forward holes. I tried swapping sides but they will only fit on one side. I may just go hydraulic and not worry about it.

GASoline71 · 07-13-2018, 10:31 PM

It's been a long fought battle with headers and clutch linkage in these rigs. Might have to cut and reweld a couple of tubes.

Gary

07-13-2018, 07:46 PM	#1
Danny Bost Registered User Join Date: Dec 2009 Location: Aztec NM Posts: 229	Big Block Install Problems Hi My truck was originally a 350 with a 3 speed. Then the PO converted it to an automatic. That was it’s configuration when I got it 15 years ago. Now I am putting a 454 with a manual trans in the truck. I bought big block stands off of a board member and big block mounts from the parts store. Now for the problem, when I try to put the 454 in it the ball for the clutch pivot is about 2 inches too far back. Any idea what is happening? Any ideas would be appreciated. Thanks Danny __________________ Danny 71 SWB

07-13-2018, 08:52 PM	#2
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,393	Re: Big Block Install Problems Do you have the big block clutch pivot bracket or did you screw the ball stud into the block?

07-13-2018, 08:55 PM	#3
Danny Bost Registered User Join Date: Dec 2009 Location: Aztec NM Posts: 229	Re: Big Block Install Problems I have the pivot ball screwed into the block. However if I was to just move the ball it would be in the center of one of my header tubes. __________________ Danny 71 SWB

07-13-2018, 08:58 PM	#4
68bowtie Senior Member Join Date: Jan 2007 Location: Turlock, CA Posts: 8,367	Re: Big Block Install Problems Could be the engine stands are in the wrong bolt holes too far back. __________________ I live in California, but identify as a Texan "If a job's worth doing, it's worth doing well" Project "Little Sister" (70 c10 blue original paint refresh) Project "C10 Fever" (68 factory black 396 swb) Project "Blue Bomb" (70 c30 blue original paint refresh) Project "Vitamin C" (71 c10 orange original paint refresh)

07-13-2018, 09:02 PM	#5
Danny Bost Registered User Join Date: Dec 2009 Location: Aztec NM Posts: 229	Re: Big Block Install Problems The stands are in the forward holes. I tried swapping sides but they will only fit on one side. I may just go hydraulic and not worry about it. __________________ Danny 71 SWB



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