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#1
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20" mufflers in 66 A body?
Helping a friend with new exhuast system in his 66. I am somewhat partial to the DynoMax super turbo and Ultraflow, but leaning towards turbo for this car. Do the 20" case mufflers fit ok under the 66? I used 14" in my old 66, but do not recall how much room I had...
Plan is to install the larger RA iron manifolds, buy a muffler delete exhaust kit from Pypes or flow master (FM offers one with an H pipe), then bring to local shop and have them install. Or, if anyone can provide good reviews on the Pypes Turbo Muffler, that could simplify sourcing all the parts... Thank you! Sent from my SM-G965U using Tapatalk
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68 Firebird-- Street/Strip - 400/461 Eagle Forged Bottom End & Ross Flat top pistons. KRE 325 CFM D port, Ultradyne 263/271 @.050, .4267 lift. Crower Solid roller lifters and 1.65 stainless rockers. Quickfuel 1000 on Torker2 intake and 2" open spacer. Hedman 1.75" headers. TH400 w/brake. Ford 9" w/3.80 gears & 28x9 Hoosier pro bracket drag radial. Best ET: 1.35 60ft, 6.29 @ 107.20 mph, 9.99 @132.33 mph. 3,300 race weight |
#2
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The 17749 20” Dynomax mufflers are a nice fit.
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1964 Tempest Coupe LS3/4L70E/3.42 1964 Le Mans Convertible 421 HO/TH350/2.56 2002 WS6 Convertible LS1/4L60E/3.23 |
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#3
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I’ve got 20 inch on my ‘71 a body. They fit fine. 3 inch, at that.
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#4
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I have the 17749 on my '64 GTO. Basically the same chassis as the '66.
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