whats changed on a 25.5 to make a 25.3
03-02-2010, 02:46 PM
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whats changed on a 25.5 to make a 25.3 i'm not far from having a 25.5 car but if its not many more bars i may push on ward and make it a 25.3...
whats the differences?
whats the differences?
03-02-2010, 04:12 PM
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alot.
25.3 must be 100% chromemoly
secondary door bars are 1 1/2 vs. 1 1/4
need 1" gussets on top and bottom of secondary door bars
roof needs an "X" of 1 1/8" vs a single diagonal of 1"
need four 1" gussets in the roof
window gussets need to be 1" vs 3/4"
depending on your flooring, you may need undercar X and diagonals (1 1/4")
rear section may need additional bars depending on construction
I'm currently converting mine...look at my build thread...starting on pg 8
https://ls1tech.com/forums/forced-in...-thread-8.html
25.3 must be 100% chromemoly
secondary door bars are 1 1/2 vs. 1 1/4
need 1" gussets on top and bottom of secondary door bars
roof needs an "X" of 1 1/8" vs a single diagonal of 1"
need four 1" gussets in the roof
window gussets need to be 1" vs 3/4"
depending on your flooring, you may need undercar X and diagonals (1 1/4")
rear section may need additional bars depending on construction
I'm currently converting mine...look at my build thread...starting on pg 8
https://ls1tech.com/forums/forced-in...-thread-8.html
03-02-2010, 04:43 PM
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when i built my little 8.50 cage i made it all out of 1 5/8 .08 and put a X in the doors and didnt use any gussets... hell i may just go ahead and do the 25.5 but make it all the right size for the 25.3 and do that when i need it.... sounds like a plan to me....
yep... i just talked to myself on the internet....
yep... i just talked to myself on the internet....
03-02-2010, 05:31 PM
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Cars of uni-body construction that have complete OEM door hinge pillars, complete firewall and complete floors with floors welded to the Inner Frame Rails (#2A) and complete OEM rocker panels, are not required to have either the right and left outer floor triangulation bars (8A & 8B) or the center floor "X" braces (4C)
