i was wondering if the heads on my 2.8 v6 are interchangeable with the 3.1 or 3.4s. i've had my camaro 13 years now and its pushing close to 300,000 miles, still going very strong, no doubt. ALSO- is there a good mass air flow sensor for our engines available? my v6 is fuel injected and i really like those wide open MAFS i see for the 350's, sounds like some easy get go - just wondering if any one can tell me where to get one - find me on Interstate 40 between Amarillo n Barstow! Long Live V6!!!

 

yes they are

 

heads, yes.. in fact, they're the same heads for all intents and purposes. To my knowledge, they all have the same chamber size and design, same intake/exhaust port volume/dimensions, same valve sizes, etc.

MAF, no.. our stupid frequency film MAFs have absolutely jack for an aftermarket and are not interchangable with hot-wire MAFs (simple explination being hot-wire MAFs are analog, frequency film are digital)

 

I'm sure someone has thought of this before but why couldn't you build a simple ADC circuit for the porpose of using the bigger MAF's. If a person new the voltage ranges of the analog etc... Someone tell why not??????????? Do the V6's go to 255 grams a sec?

 

Our ECUs are programmed up to 210gm/s, iirc.. and I have been thinking about it, but for my purposes, speed density makes more sense anyway...

 

If ya need, I have a set of the 2.8/3.1 MPFI heads rebuilt with several new guides, includes new head gaskets, too.

 

2.8/3.1 heads are identical. 3.4 heads MAY or MAY NOT have larger spring pockets. Until I actually see pics, and real measurements, the jury is out.

The problem isn't the maf - it's the fact that our computers can not read any higher than 255 g/s. It has no way of storing a larger number.

 

Doward, I still have my 3.1 heads in storage, and I am planning on pulling my valve covers this week to install some 1.6r and fix my oil leak.

I will see what I can do for measurements, pictures wont be an issue.

 

I could have sworn that the 3.4 has bigger valves than the 2.8.

 

nope, the carb 6/60's had 1.6 and 1.3?? Valves. Any fuel injected 6/60 has 1.72 and 1.42.

 

I replaced the carb'd 2.8 in my Jeep with a 3.4 crate motor from GM (the intake, carb, etc. just swapped over) and the 3.4 crate motor has the bigger valves. That 3.4 is a far better engine than the 2.8. I could actually out-accelerate kids on bicycles!

 

hince you said CARBED. Yes, the 3.4 crate uses the same heads/valves as a fuel injected engine.

 

Actually, all fuel injected type heads have the same valve size,
2.8/3.1/3.4. = 1.42/1.72 The earlier 2.8 heads that came with carberated engs. used 1.30/1.60

 

Actually, all fuel injected type heads have the same valve size,
That's absolutly correct.
I have the left over springs from Dale 3.4 heads and a set of for sale 2.8/3.1 heads with springs installed.
IF I had the extra moment would measure.
I pull the larger springs of the 3.4 heads information from the GM Performance Parts book.
When I've done my 3.4 installs, I never had the need for measuring spring size. Too busy dealing in details to make the engine work right. Most anxious to hear about the 1.6 rockers on the 3.4 mill.