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3.5 if memory serves. The 400 has the shortest stroke of all sbc. With a crank change I think you can use 350 rods but verify-it's been a while. Get a catalog from P.A.W. in Ca. They have more engine stuff than anyone else & tons of kits.
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∙ 13y ago
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Will a sbc 350 starter motor fit a sbc 400?
Yes.
Will a 350 sbc bolt to the same transmission as a 400 sbc?
yes
Will a sbc 350 flywheel fit sbc 400?
yes but it has to be 83 or newer
Will a 1983 350 sbc flywheel work on a 1973 400 sbc?
No. The 400 is externally balanced and requires it's own flywheel.
Are sbc 350 pistons and sbc 400 pistons the same?
No. Standard 350 engines have 4.00" pistons, standard 400 pistons are 4.125".
Will a 350 sbc tune port injection fit in a 400 sbc?
It should work well.
What is the horsepowerof a 1972 sbc 400?
its about 350
How far can you bore a 400 sbc?
.030
How long are stock push rods on a 5.7 liter vortec?
The "Vortec" engine is almost the same as an old school SBC, all things being such, the push rods are a little different for the OEM roller cams.
What machining do you have to do to put a 400 sbc crank in a 350 sbc?
The main journals need to be turned down.
When was SBC Long Distance created?
SBC Long Distance was created in 1996.
How do you get cubic inches in a sbc?
usually through longer stroke crankshaft;custom pistons and different length connecting rods!!!
