I have a 97 civic with a jdm 93 h22a but the top has been painted so not sure if it was a red top or black top. One thing I noticed is the oil cap is on the front drivers side of motor and most I've seen are on the passenger rear. It has a m2b4 tranny but wondering if there's any other way besides valve cover color to identify the type?

 

Which head does it have? All red tops came with PDE heads, most black came with P13's. Obd2 have serial numbers, does yours? If not then id say base, if so and it has a pde head. Then look at the valve train, or pistons.

Whats you're intake look like? Only a Euro-R could mat to a m2b4 trans, do you have a euro-r intake?

 

It's a skunk 2 pro series intake

 

It has a p13 head bit the tranny is a m2b4 motor is stamped h22a with 1100189 under it

 

If it has a serial number it is obd2, and with a P13 head Im 100% sure its a base model open-deck h22a.

 

Since when did a serial # mean that it was obd2? I have 2 closed deck obd1 H22A, and they both have serial #s.

 

on paper or engraved on the block? I may be wrong, but ive seen obd1 blocks without serial numbers engraved. But some obd2 motors came with them.

If it has a p13 head its still a base model.

and all 97+ are still open decks

So 2 for 3 isnt bad i guess lol.

 

What is open deck.....?

 

I believe its in the FAQs, basically the way the coolant cools the block. Or google pics of both, its obvious once you see the two. All obd2 were open decks, which is better for cooling but not as strong of cylinder walls.

 

Yup OBD1 closed deck blocks, P13 heads, and the serial numbers are stamped into the block, same as the 2 H23A1 blocks and H22A4 block that I have as well.

 

It is obd 1 and numbers are stamped on block. Head says p13 and was made in 93. Why is my oil cap on the front drivers side instead of the rear passenger like all the others I have seen

 

That is rather odd, can you post a picture of this valve cover with an oil cap at front drivers side up on here?

 

this is not entirely true. some early red top type r engines, as well as blue top engines, came with a p13 head. not that it makes much of a difference, ive yet to see any real evidence that there is a major difference between the heads. also, while the euro r intake points to a type r engine, some type r motors came with the standard 2 stage intake manifold. the only real way to tell is to measure the cams or check the pistons.

if your motor is a 93 its not a type r motor. the type r is a late model obd2 engine. it comes with an aluminum oil pan, open deck cylinders and the larger 55mm crankshaft.

 

Maybe I should have said all Euro-R's have pde head. They have the 3-pin IACV, anything with a 3-pin has to have a pde head.

Second I never stated anything about blue-tops, I know not all of them have pde heads. I own a H23aV myself, I waited to find one with a pde head.

Seeing how the ATR was only in Europe starting in 98' and finding a U2Q7 is like finding a unicorn. Id assume the chances you find a H22A7 is slim to nil. Your talking about the one super rare exception.

Even if you bought a Type-s and it came with a p-13 it would have a P&P head, although I doubt there are many if any out there. I dont know exactly what year they came out so I cant be for sure. Hell Honda kept 50mm mains even on a few 98' blocks, but its still a safe bet to assume your 98 is 55mm mains.

The Pde heads are better because of valve angle and flow. They take to bigger cams better.

 

double post.