Author Topic: Ca18det block w/ ca18et head (Read 14892 times)

Keith · « **on:** 12:07:30 AM / 02-Apr-06 »

What needs to be done to make this work???
Seems like someone here has done this....but I forget who.

Radracer_S · « **Reply #1 on:** 04:05:51 AM / 02-Apr-06 »

Me. =p

Keith · « **Reply #2 on:** 12:35:33 PM / 02-Apr-06 »

Quote

Me. =p

You?? When?? Last time I saw your car it had a ca20......plus you have a sr20-t sitting in your garage. Change of plans?

Radracer_S · « **Reply #3 on:** 01:06:04 PM / 02-Apr-06 »

Hahaha belated april fools....

Keith · « **Reply #4 on:** 11:07:10 PM / 02-Apr-06 »

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Hahaha belated april fools....

Haha.....good one...............jackass :wink: j/k You got me haha!

Seriously though.....anyone got any info on this? Seems like I remember that the water passages didn\'t line up correctly or something between the det block and et head. What else?

highrolla · « **Reply #5 on:** 02:56:18 AM / 03-Apr-06 »

30PSI has that setup, DET block, ET head. Also using a DET crank as well which means you use the DET oil pump. The standard bottom pulley for the cambelt has to be remachined as the crank is thicker.

Joel07 · « **Reply #6 on:** 10:43:15 AM / 03-Apr-06 »

Yeah, I\'m thinking the original thread got lost in one of the crashes, but I\'d check on S12OC and do a search there...

Zman · « **Reply #7 on:** 12:37:00 PM / 03-Apr-06 »

I have done it too.

The DET and ET crankshaft sprocket are of diffrent size in bore and can not be swaped with each other. If you want to use the DET crank you need to take the ET sprocket to a shop and have them rebore it.
Another way is to just keep the ET crank. With this you will also have to keep your ET flywheel.

The ET and DET have diffrent size head bolts so you would need DET headbolts. 9 of them will fit but the first bolt on the distributors side will be to short.
I went to the junkyard and took the best bolt I could find and it was in a FWD SR20DE. It\'s too long so had to be cut shorter.

The ET engine mouts, if you want to use them are a straight fit on the block and so is the cambelt tensioner. There will be a bolt hole on the front of the engine that will leak oil of you don\'t put a bolt in the hole. Don\'t know sits there on the DET.

Then there will be some modifications to the water lines under the intake mani. This is not a big deal mostly you need a longer hose here and a shorter there and so on.

Keith · « **Reply #8 on:** 12:38:03 PM / 03-Apr-06 »

Quote

30PSI has that setup, DET block, ET head. Also using a DET crank as well which means you use the DET oil pump. The standard bottom pulley for the cambelt has to be remachined as the crank is thicker.

I\'m takling about using the complete ca-det short block......so I would be able to use it how it is.....det crank, oil pump, pulley, crank sprocket, and so on......right?

What about the timing belt? ca18et belt?
I\'ll try searching s12oc.............. :confused:

Zman · « **Reply #9 on:** 12:40:06 PM / 03-Apr-06 »

If you get a complete DET then it\'s just better to rebore the sprocket and move the ET tensioner to the DET block.

TE27Levin · « **Reply #10 on:** 05:22:51 PM / 03-Apr-06 »

Sounds like a waste of time to me.

MrBob · « **Reply #11 on:** 10:42:34 PM / 03-Apr-06 »

The crankshaft is the biggest difference between the ET an DE/T shortblocks. The crankshaft snout is bigger on the DE. This requires a different oil pump, timing pulley and front pulley. The DE crankshaft is also drilled for 8 bolts as opposed to 6 for the ET. Other than that the cranks are the same. Also the DE block has 11mm x 1.5 headbolts while the ET has 10mm x 1.5 headbolts. All water passages, oil feeds and drainbacks are in the same place.

Arro · « **Reply #12 on:** 11:18:48 PM / 03-Apr-06 »

My question is: are CA18DE/DET rods able to swap into a CA18ET bottom end with a CA18ET block, crank, and accessories?

Our real weakness is the rods, right? I\'ve seen these things apart, and provided it\'s tuned well, whatever could break the block or the crank is likely gonna do it to the DE/DET bottom end, too, and a girdle ain\'t gonna help much.

MrBob · « **Reply #13 on:** 11:41:14 PM / 03-Apr-06 »

Yes, the DE rods will fit the ET crank. They are the same length, have the same pin bores and are the same width as the ET rods. The only difference between the ET crank and the DET crank is the snout and the number of flywheel bolts.

Arro · « **Reply #14 on:** 11:49:40 PM / 03-Apr-06 »

Hmm then all I\'d really want to do was shotpeen some DE rods, use some ARP on top and bottom with a copper headgasket, and that\'s pretty much it.

MrBob · « **Reply #15 on:** 12:35:09 AM / 04-Apr-06 »

Cometic is making a MLS headgasket now. I feel that is the best way to go right now.

Arro · « **Reply #16 on:** 01:05:52 AM / 04-Apr-06 »

Sounds good to me.

30PSI · « **Reply #17 on:** 02:21:56 AM / 04-Apr-06 »

If you use DET rods you will need to use the DET pistons as well.

I\'ve done the DET block conversion using a DET crank and forgies.

I would recommend just using a whole DET engine, the head is far superior to the ET head and will see alot more power with the same effort.

Keith · « **Reply #18 on:** 09:03:18 AM / 04-Apr-06 »

out of curiousity, and may have been answered already somewhere, but........are the de and det rods and pistons the same?

Arro · « **Reply #19 on:** 03:13:03 PM / 04-Apr-06 »

No, I don\'t want a DOHC engine, I want to pass visual inspection for smog, and be able to retain all the OEM accessories and whatnot. As long as the head is the SOHC, I can do that. If I went with a complete DOHC I\'d import an FJ from Oz. If you\'re gonna do it, do it right