6g72 and 6g74 parts interchangeable?

[Gearheadvr4]

What parts are interchangeable between the two engines? In particular the timing parts?

What about cam/crank sensors, oil pumps, accessories, ect.

[mb3000]

This should help.

6G74 3.5L Engine Main Swap details!...JOHN MONNIN'S PERSONAL 3000GT/STEALTH FAQ (http://wrenchmonkey.com/Webpages/6G74details.html)

[Hans@GZP]

You just need a different timing belt.

[keo92stealth]

This should help.

6G74 3.5L Engine Main Swap details!...JOHN MONNIN'S PERSONAL 3000GT/STEALTH FAQ (http://wrenchmonkey.com/Webpages/6G74details.html)

but do you know if he used 72 heads?

[Gearheadvr4]

I'm using 6g72 heads. Will I need the 6g74 cam gears?

[Hans@GZP]

You need a 6g74 timing belt for a DOHC engine. 72 or 74 heads are the same dimensions and the timing marks are identical.

[Gearheadvr4]

I was under the assumption that the gears on the heads of a 6g74 were slightly different. Maybe a tooth difference.

[mb3000]

Taken from the main page.

"CAM gears on 6G74 engine have timing mark 1/2tooth off, You can modify 6G72 gears but the 6G74 gears are easier
See my parts comparison page to see difference between gears."

Link to the page:

6G74 3.5L to 6G72 3.0L comparison Pictures!...JOHN MONNIN'S PERSONAL 3000GT/STEALTH FAQ (http://wrenchmonkey.com/Webpages/6G74Pictures.html)

[Gearheadvr4]

So I should use stock 6g72 heads with the 6g74 cam gears?

[mb3000]

It's what I would do, I would shoot Micheal a PM to see if he can grab you some from the junkyard. That is, if you don't have any.

[Gearheadvr4]

I have both types of cam gears just in case. Last thing I want to do is ruin these expensive pistons from using the wrong gears.

[TUFFTR]

Again, Yes you need the 74 gears, or as I have done with 3SX adjustable ones, Just set them forward 4deg, or on standards, Etch a new mark half a tooth forward.

The 74 heads are identical to 1993+ (2nd gen) NA heads. So if you value your TT heads, swap those on, or else they are just a standard 2nd gen 72 head.

[Gearheadvr4]

Aren't you scared of adjustable gears? They have never walked or moved on ya?

Ok, I only have 6g72 heads and I'll just put the 6g74 gears on. One issue I will run into is the cam/crank sensors. My block has the crank sensor (94+) The 6g72 heads are 92 and have the cam sensor built in. I'd prefer just to run the cam sensor only. Need to read up on the AEM. From what I remember it can work with either setup.