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Mod | | | Forums66 Topics128,180 Posts1,057,141 Members48,463 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | You shouldn't need any additional spring rate with the engine swap. Even with the additional weight of the 348 (approx. 620 lbs), it is still lighter than the base model 235 6 cylinder (approx. 635 lbs) that the suspension is designed to handle.
Bill Burmeister
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