2.0 2.5 Blocks

[Aaronhl]

Is the half of the block circled the same on the 92-96 2.0 135/150 and 2.5 200? According to the part numbers the crank is the same so is that part of the block the same too?

[Aaronhl]

So I guess even if they are the same you cant mix match

Cylinder Block and Crankcase Cover
IMPORTANT: Crankcase cover and cylinder
block are a matched, line-bored assembly and
never should be mismatched by using a different
crankcase cover or cylinder block.

[bullet123]

Most front halves are interchangeable. ive mismatched before with no problems. Maybe im lucky?

[tlwjkw]

as long as they are same generation blocks they will interchange.. ie: 76 ta '82, 83 ta 90, 91 up... although tha first and second gen ('76 ta 90) stuff will all interchange.. sometimes best ta remove tha dowel pins to make 'em work.. mis-matched block halves are NOT recommended (but done anyway for myself!) for any kinda "hot rod"....... jmo

[Aaronhl]

Cool Good to know Thanks guys

[ShadowFlier]

2.4 to 2.5 will not interchange as the center main crank bearings are different OD's. I believe 2.0's are the same as a 2.4 as well.

[bullet123]

2.4s are different. 2.0 and 2.5 cranks and fronts are interchangeable.

[bullet123]

I might have said that wrong. First off, most of my knowledge if from trial and error. I have used a 2.0 crank in a 2.5. I have never tried a 2.5 crank in a 2.0 because I don't mess with 2.0 motors. I do know 2.4 cranks don't last long in a 2.5 due to shoulders on journals.

[tlwjkw]

ya'll gonna get him all confused throwin' tha different cranks that work with different blocks inta tha mix... ya right 'bout tha non-shoulder crank ina "fat block".. been several folks had that experience....

[25two.stroke]

ya'll gonna get him all confused throwin' tha different cranks that work with different blocks inta tha mix... ya right 'bout tha non-shoulder crank ina "fat block".. been several folks had that experience....

I've been thinking about crank swappin lately and after seein this thread I went and did a site search for it. I found a old thread that laid it out...and guess who explained it the best?
Ya, anyone wanting to know what fits and doesn't go check this one out. https://www.screamandfly.com/archive.../t-304574.html

Quote: TLWJKW
Ya'll puttin' to much emphasis on what it came out of.....

shouldered center main will run in anything 2.0, 2.4, 2.5 (small/large OD plastic bearing)

non shouldered center main "pre fat block only" 2.0, 2,4 (metal caged, lipped race)


As far as front halves go...theres three things that changed: the center main bearing dia., the bolt pattern, and the upper bearing.

If the 92-96 2.0 is a sleeved 2.5 then the fronts and cranks will swap with the 2.5

[tlwjkw]

thats an old thread that i left a few things out that i coulda explained a little better..