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1 3/4 or 1 7/8 headers on a 427?

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Old 08-16-2021, 03:27 PM
  #31  
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go online wallce racing i think and they have a header sizing calculator... or several on line
run them and see
bigger more top end lose torque and nobody make the tube long enuff casue they aint room

but for a 427 id definitely go with 1 7/8 unless u never gonna turn it over 4500
Old 08-19-2021, 09:08 AM
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It's an 02 1500hd with a built 4l80e and 35 12.50 17s at the moment I'm not gonna be living in this county very long anyway I could honestly just run like a 227/234 cam and put some e85 in it and pass couldn't i?

Last edited by Cheyenne95; 08-20-2021 at 07:57 AM.
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