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#1
07-04-2008, 02:37 PM
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Magnaflow 12578 22" Body Fit 68 GTO?
I'm thinking of getting the 3" in/out 5x11 22" body Magnaflow's since I've heard they are very quiet but flow great. Has anyone fit them in a 68-72 A-Body? I plan to use a 3" Pypes X and my current 2.5" tailpipes.
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68 GTO,3860# Stock Original 400/M-20 Muncie,3.55’s 13.86 @ 100 Old combo: 462 10.75 CR,,SD 330CFM Round Port E's,Old Faithful cam,Jim Hand Continental,3.42's. 1968 Pontiac GTO : 11.114 @ 120.130 MPH New combo: 517 MR-1,10.8 CR,SD 350CFM E's,QFT 950/Northwind,246/252 HR,9.5” 4000 stall,3.42's 636HP/654TQ 1.452 10.603 @ 125.09 http://www.dragtimes.com/Pontiac-GTO...lip-31594.html |
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#2
07-04-2008, 07:27 PM
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If you can whack out the tank and place them like this, a perfect fit!
Seriously, you wil have to be careful on the exit as they are 2" longer than the Super Turbo 17749. You can shorten the inlet and outlet and gain some room though. Tom Hand
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Tom Hand |
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#3
07-06-2008, 06:26 AM
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I have Magnflows on my 66 GTO, I believe they are the 18" body length, 3" in/out. Definitely quieter than the 14" M/Fs I had on. Been on 6 years now, still in perfect cond.
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#4
07-07-2008, 05:32 PM
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I saw on another site where someone had the 22" versions on a 67 427 Chevelle. They have a longer wheelbase though so I may have to go with either a Magnaflow or Pypes Race Pro 18", whichever is quieter.
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68 GTO,3860# Stock Original 400/M-20 Muncie,3.55’s 13.86 @ 100 Old combo: 462 10.75 CR,,SD 330CFM Round Port E's,Old Faithful cam,Jim Hand Continental,3.42's. 1968 Pontiac GTO : 11.114 @ 120.130 MPH New combo: 517 MR-1,10.8 CR,SD 350CFM E's,QFT 950/Northwind,246/252 HR,9.5” 4000 stall,3.42's 636HP/654TQ 1.452 10.603 @ 125.09 http://www.dragtimes.com/Pontiac-GTO...lip-31594.html |
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#5
07-09-2008, 09:22 AM
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25" total length offset-offset is what it had new so they will fit right under.
I ended up using Dynamax 17560 welded. 2 1/2 2 1/2 25" total length offset-offset worked like a charm. 
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69 400 Block, .030 over, KRE eagle stroker kt, KRE,CNC ported e-heads 310 cfm, port match RPM , comp roller 236/245@.05 586/600 lift 110 LS. 1.5 HS roller rockers, 350 Transmission, Red Neck tight 3500 stall converter, Ford 9” with 3.75’s, Strange center section, Moser 31spline axels, 29”Mt slicks, HRPARTSNSTUff anti roll system, Doug’s Headers 3.5” collectors, 22”Dynomax mufflers w/ H-pipe, Cliffs Q-jet, Fuel cell with sumps, Mallory 140 fuel pump and filter. Denny’s 3.5” drive shaft. Last edited by 70 Lemans; 07-09-2008 at 10:06 AM. |
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