no cause a 4 bolt main has 2 extra bolts on each main
quick answer is NO, 2 and 4 bolt main engines both had the same casting numbers. you have to pull the oil pan to be 100% sure.
Yes, they are. The 3.8 and 3.8 sc are virtually the same engine, with the supercharger being the main difference. No they are difrent! bolt patern same that's it
The main difference will be different Heads, different upper and lower intake manifolds. The explorer has 40 more lbs. of TQ, but the same HP rating. They are not bolt for bolt the same motor.
No
Yes it will bolt wright up to it. Bolt patteren is the same.
The bolt pattern is the same, but the 21R engine has 2 locator dowels, which must be accurately marked and drilled on the gearbox, if it has come from an 18R. The bolt pattern on the crankshaft end are not the same, so the flywheels are not interchangable.
Nothing. They are all the same length
It has the same bolt pattern and it will bolt up but you will need the correct flexplate.
any 4 speed tranny from a 340 engine will bolt to a 273, 318, or 360 engine as they are all the same engine block.
A 350 Oldsmobile engine has a different bolt pattern than the Chevrolet engine. The 350 Olds and 350 Pontiac engines have the same bolt pattern. The 350 Chevrolet and the 350 Buick engines have the same bolt pattern. Unless you have a dual bolt pattern transmission (there are some out there) in that Chevy, the Olds engine won't bolt into the Chevy transmission.
They are all the same length. It is not necessary to put them back in the same spot.
yes, same engine bay, but u may need some different engine mounts.