2006-10-26 11:24:30 · 12 answers · asked by MICHAEL T 1 in Cars & Transportation ➔ Other - Cars & Transportation
extra strong boat anchor
2006-10-26 11:33:25 · answer #1 · answered by turkey 6 · 0⤊ 6⤋
This Site Might Help You.
RE:
What does Chevy 350 4 bolt main engine mean?
2015-08-09 04:15:52 · answer #2 · answered by Anonymous · 0⤊ 0⤋
4 Bolt Main
2016-10-05 05:49:13 · answer #3 · answered by gajewski 4 · 0⤊ 0⤋
The engine displaces 350 cubic inches, and the main bearings for the crankshaft have four bolts to each bearing instead of the usual two. That usually means you can run a bit more in the way of horsepower from modifications since you don't have as much play in the crankshaft when things on the top end get busy. Four bolt main engine blocks also had a bit more "beef" to them. More "beef", more strenght.
2006-10-26 11:38:18 · answer #4 · answered by rifleman01@verizon.net 4 · 0⤊ 0⤋
It simply means the engine block displaces 350 cubic inches ( total area of the pistons) the 4 bolt main means there are 4 bolts holding on the cap of the main bearing ( this is the bearing the crankshaft rides on)
2006-10-26 11:33:28 · answer #5 · answered by ec1177 5 · 0⤊ 0⤋
It means the engine is 350 cubic inches in displacement, or 5.7 liters. Four bolt main refers to the type of main bearing caps the engine has. Four bolt main caps have two bolts on each side of the center of the bearing cap, a two bolt main style motor would only have one bolt on each side. Typically, four bolt mains are more desirable for high RPM, high horsepower, high torque motors because they provide more stability for the main bearings and the crankshaft. Two bolt mains were common in ordinary passenger car applications, where the demands for power were not as great.
2006-10-26 11:36:10 · answer #6 · answered by dathinman8 5 · 0⤊ 0⤋
It means as follows:
350 is a 350 cubic inch motor (total displacement in 8 cylinders.)
4 bolt main refers to the main bearings that hold the crankshaft in place. The bearings have 4 bolts to hold them in place.
2006-10-26 11:34:34 · answer #7 · answered by my_iq_135 5 · 0⤊ 0⤋
It means that the 350 you have has 4 bolts instead of 2 that secures your crankshaft in place.
2006-10-26 11:26:50 · answer #8 · answered by brian m 2 · 0⤊ 0⤋
It meens there are 4 bolts in each main bearing cap instead of 2 They are usally truck engines
2006-10-26 14:09:52 · answer #9 · answered by fred d 1 · 0⤊ 0⤋
4 bolts on each bearing cap, these engines seem to be worth more since they are becoming rare is what I hear.
2006-10-26 16:37:33 · answer #10 · answered by wheels47012 3 · 0⤊ 0⤋
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bore it to a 383. make it to fuel injection and turbo it, along with bullet proof internals, i mean if u have a 2nd car and some $$$ LYING AROUND of course. check out hotrod webpages good luck CHEVY bro.
2016-04-10 06:56:52 · answer #11 · answered by Mary 4 · 0⤊ 0⤋