95 3.4 Camaro interference motor?

[neversleeps]

Hi everybody,
This is my first post. I broke the timing chain in my car the other day and was wondering if this motor is a bender (interference motor)? I searched and it seems as if the aluminum headed motors are but i didnt see anything about iron headed ones?

[Superdave]

Yes, it is. People have gotten lucky though.


welcome to 60v6!

[neversleeps]

Hey,
Thanks for your reply. I guess im one of the lucky ones then. It did break at a relatively low rpm though. Got it all back together and all seems well.

I just noticed youre from the qc. I lived in Geneseo my whole life til about 2 years ago when i moved out here to CO.

[ForcedFirebird]

Yes, it is. People have gotten lucky though.


welcome to 60v6!

Yes, welcome!

Are you sure iron heads are interference, Dave?

[Superdave]

Should be, If you have one laying around measure .47" ( lift + HG thickness) from the lowest point of either valve. If that ends up below the surface of the head then there is a chance that the piston will kiss it. All i have are aluminum heads, and they are for sure.


Cool, i've been through Geneseo a few times over the years. I'm in Davenport, kinda by the east village.

[neversleeps]

One guy thinks it is and one doesnt. Anyone know for sure?

[ForcedFirebird]

With stock parts, it's definitely NOT and interference motor.

http://www.thirdgen.org/techboard/v6/383620-2-8l-interference-engine.html

The 2.8 had flat top pistons, the 3.4 has an 8cc dish in them. If the valves don't hit on a 2.8, then there is more clearance for the 3.4

[Superdave]

I guess there is one advantage to having iron heads.. lol

[neversleeps]

thanks for the response guys. i guess i wasnt as lucky as first thought although nice to know if it does it again