Are our 4.8/5.3/6.0 engines interference or non interference engines?

 

I may be the only person that does not know what your talking about.

 

Nope...not the only one.

 

Description of interference and non interference engines here.

http://www.familycar.com/CarCare/TimingBelt.htm

The LS1 is a vavle mangling, piston smashing, pushrod twisting interference engine AFAIK.

 

I see! I changed the timing belt on my ford escort beater. Had to drop the engine about 6 inches to get to the crank pulley bolt. Took me 8 hours.

I'm glad our engines don't use them!

 

appreciated, some things never change.
hasn't chevys small block always been an interference motor?

 

Thank god we dont have cheesey belts. Good ol chain.

 

Kind of curious what replacement interval for the timing chain would be appropriate for supercharged/turbocharged/N2O applications?
In other words, what safety margin would most feel comfortable with under any of the above conditions for replacement?

 

Definitely interference.

 

A non-interference motor is one in that has HUGE piston to valve clearances. So huge, that with a piston at TDC, you can spin the cam two revolutions and not have any valves hit it.

It would basically be a very low compression, old design motor.