The 1947 - Present Chevrolet & GMC Truck Message Board Network - swapping 454 in place of 6 cyl...how much drop with stock springs?

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- - swapping 454 in place of 6 cyl...how much drop with stock springs? (https://67-72chevytrucks.com/vboard/showthread.php?t=147135)

superchevy

03-22-2005 06:22 PM

swapping 454 in place of 6 cyl...how much drop with stock springs?

I'm just wondering how much the front end will drop on my '81 when I swap the 454 in place of the 250 six cylinder?
Any ideas?
SC

Tx Firefighter

03-23-2005 08:37 AM

Casey, it's not exactly the same truck, but my 70 model dropped about an inch when I went from inline 6 to 454. I also went to power steering, power brakes, and auto transmission at the same time.

superchevy

03-23-2005 10:15 AM

Hi Kevin, yeah, I'm thinking about an inch drop as well. Combined with the 2 1/2" drop spindles...probably about a 3 1/2" drop total.
SC

Captkaos

03-23-2005 07:36 PM

I might go and inch becuase the springs are over 20 years old.

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