The engine casting has markings that show "70HM6015BA" so I can safely say this block was cast in 1970?
No, and yes. We know its a 71-73 block . Im looking into it.
Well, I looked into it. The part number's ( usualy ) start with a letter to ID the decade. D is for 1970s and then the number 0-9 is the year. However, That is not allways the case. The next two letters are the car line and Ford service part. Again not allways becouse in this case you would have a Heavy Truck/SVO preformance ID. the next code is the basic part number. 6015 is the part number for all ford blocks. the last two letters are the design change ( dont know what BA means). Given all this info I would say you have a ford block ( 6015)from a 71 car( part was made late 70) and forget all the other stuff becouse it dosent work. Now, the funny thing. My 2.0 block is part number 85HM6015BB. You say wait....they didnt make 2.0L in 85......well, yes and no. Ford USA didnt but Cosworth did, I have a 85 2.0L Cosworth Block ( I knew that when I got it though).
ford DID make a 2.0 block in 85 (started in 83 to be exact), but its not the same 2.0 as the pinto 2.0. It was basicly a de-bored 2.3 and only saw use in the rangers as the bottom of the barrel base model truck. The S-series ranger (s stands for stripped) had no frills what so ever. Black paint/grille/bumpers, Red inside, rubber floormats, manual trans, power nothing, no radio, and had a 1 bbl carb until 87 when they switched to a japanese progressive 2 bbl until the 2.0 ended at the end of 88. Most people think of those engines as dogs, but can be woken up pretty good with a nice cam and a header. My father has an 88 2.0 ranger and my 90 BroncoII with a 2.9 doesn't want any parts of it.
But like i said, it has nothing to do with the pinto 2.0.
-Harry
Actually its NOT really a 2.0 block, it s a small bore 2.3 block. It does not share any components with the 2.0 Pinto blocks.
so when i go to buy parts for it i need to actually buy parts for a 2.3?
the only this i intend on doing are maybe get concave pistons and a new intake to get rid of the 4 Mikuini bike carbs
additiaonally, engine wise i am gonna half the valves replaced and maybe get the head decked .003 to smooth it out
No, you need 71-73 2.0L pinto parts.
Sorry for the confusion, i guess i should've kept my mouth shut. :P
Like turbopinto72 said, you need 71-73 2.0 pinto parts.
-Harry