Quick 670 question

[J.S.@SMS]

Does anyone know if a Predator 670 is like a 196 Honda/clone when it comes to floating the valves before the rods blow with the stock springs? I would like to be able to remove the governor on a 670 in the future, but I don't know if the rods are strong enough to rev past valve float.

If there is a problem with the valve springs being too strong could lighter springs be used, or would I need to get a billet rod set and a billet flywheel?

 

[J.S.@SMS]

Anyone?

 

[Tpdingo]

Look at CarsAndCamera's videos about the 670. They will I've you a good idea about what is safe and not safe with the 670.

Just remember this:

A blown 670 is 700$, not 100$.
A blown 670 is 125lbs of shrapnel, not 35lbs.
A blown 670 has no easy to find replacement parts.

 

[HoldenIron]

You shouldn’t worry about floating the valves on a 670 till you mode open the air way by using a unrestricted filter, header and governor removal. After that you will need stiffer springs. It will breath a lot better once that factory air box and factory muffler are junked.

 

[Flyinhillbilly]

Look at CarsAndCamera's videos about the 670. They will I've you a good idea about what is safe and not safe with the 670.

Just remember this:

A blown 670 is 700$, not 100$.
A blown 670 is 125lbs of shrapnel, not 35lbs.
A blown 670 has no easy to find replacement parts.

I agree with this answer.

 

[J.S.@SMS]

Thanks, and I agree with most of thet statement. Assuming that a 670 were to blow a rod, but not damage the block, an OEM take out rod is $14.95 at performance670.com.
https://www.performance670.com/category/product/new-take-out-oem-parts

However I do intend to get a billet rod, flywheel, cam and valve springs for the engine.

 

[mckutzy]

Im going out on a limb here.. but maybe check out the rest of that site... they have flywheels...