DIY Parts and
accessories for Classic Mustangs, Jaguar IRS, and Hydraulic clutches
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Carburetor 1.12 to 1.08 bore adapters
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This kit is
sleeves to size down the bore of a 1.12 Autolite 4100 carburetor for
improved throttle response. Each set is hand made and test fit in a
4100 carburetor, they are a tight fit but can be pressed in by
However do to tolerance in manufacturing in the 60s
some slight fitting may be required. I had one customer (the
quote below) that the adapter was loose in one of his two
with the manufacturing of his carburetor) but the sleeves still
KIT WILL NOT TURN A
1.12 CARBURETOR INTO A 1.08 CARBURETOR
want a 1.12 carburetor to function exactly like a 1.08
carburetor you would need to install these sleeves, change the jets to
meet your engine specs AND change/modify the boosters.
these sleeves WILL do without any other modification is improve
throttle response and make it easier to install a big block 4100 on to
a small block
from customers who are
running these sleeves:
difference in throttle response and almost completely eliminated the
hesitation off of idle, very impressed.”
Venturi reducers have been installed and I am very pleased in how the
car is running."
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and reproduction parts
you need to order replacement reproduction parts for your Mustang make
sure you check out Steve's Mustang Parts.
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manufacturers/distributors of Ford or Jaguar automobiles.