Re: 454 in a '79 K20
I replaced the SB 400 in my old '79 Sub.It bolted right in.Same motor mounts.You need to use a short bowl fuelpump.I think I got one for a 70 Malibou.Also need to swap to the four core Rad.
And like said mileage went up when cruising the highway.
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1984 1ton 4x4 crew cab dually 6.2 diesel,465,205,D60,D70,1987 3/4ton 4x4 suburban 5.7 FI350,TH400,208,1985 CJ-7 FI406,465,205,D60,FF14, 1970 Jeepster 350,465,205,D44,FF14,
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