T-400 Modulator Tubing Size?
October 8th, 2021, 06:45 PM
#1
Gary
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Join Date: Feb 2014
Location: Gillespie County Texas
Posts: 2,082
T-400 Modulator Tubing Size?
What is the OD of the steel tubing that goes from the passenger valve cover area to the T-400 modulator? I've seen it on 1970 Cutlasses, it's probably on more models as well.
October 9th, 2021, 08:41 AM
#4
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October 9th, 2021, 09:30 AM
#5
Gary
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Join Date: Feb 2014
Location: Gillespie County Texas
Posts: 2,082
October 9th, 2021, 09:59 AM
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Running On Empty
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October 9th, 2021, 03:49 PM
#10
72 Olds CS
Join Date: Jun 2011
Posts: 6,657
I know im late to the party, but i brought some info.
in typical Olds fashion theres always more than 1 answer.
this is original th400 modulator line its from a 1970 big car w 455.
the od of the line is ~3/16, but right at the end of the line its crimped creating a restriction. Its the intake side of the line.
i recall a thread a while back, init someone asked about a modulator line restriction
.
in typical Olds fashion theres always more than 1 answer.
this is original th400 modulator line its from a 1970 big car w 455.
the od of the line is ~3/16, but right at the end of the line its crimped creating a restriction. Its the intake side of the line.
i recall a thread a while back, init someone asked about a modulator line restriction
.
Last edited by RetroRanger; October 9th, 2021 at 06:28 PM.
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