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Old 11-14-2018, 05:40 PM   #35
jrpontiac
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Join Date: Nov 2017
Location: spokane, wa
Posts: 122
Re: 77 c10 5.3ls turbo

If I remember correctly the sending unit is off an 87, which has 3/8 primary and 5/16 return.

The fittings I got were for 8an and 6an lines. I was looking for an 8an fitting for the 3/8th line. I'm not sure if a 6an is an option on the 3/8 line.

Russell part# 644130 3/8th line & 644110 5/16th line.

4 Russell fittings cost $60. Have $245 into pump/filter/fittings/hoses.
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1977 Chevy C10 SB, Turbo 5.3ls, TH400
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