Z06 N/A options

[Pay2Play]

Out of curiousity, a 427 is a monster block to work with right? What size stroke can this motor receive? Also with the right work, what sort of power is this motor capible of with the right work. (Keep it with in reason). Naturally aspirated and still potential daily driver?

[DynamicTuningSolutions]

570 RWHP is probably at the far end of drivability. As to stroke 4.125 can be done but it pushes the pin up pretty high in the piston. Not really recommended.

[howard@redlinemotorsports]

I agree with Doug. 540-560 is an average reality of what a cam, header, intake, tune package can produce with stock drivability. We have made high 570's but the camshaft needed does effect the low speed driving a bit. Not too mention torque below the curve suffers.

This is a 100HP rear wheel gain which is quite a feel from stock. Everyone is always shooting for that big max power number yet its so unimportant for a street car. You really want great torque and good overall average power.

The problem with stroking is going to be with piston support. The longer stroke really gets the piston further down the bore which can cause piston rocking and lose of good oil control. The stock LS7 block is really at its limit at 4.000" If you did want big cubes you would be better off with a whole new motor and bore and stroke it. Now you are into big money and could be taking the project into no mans land!

Maybe you can hook up with someone with a properly setup cam/header car and see how you like it!

Howard

[nyvette]

I agree with Doug. 540-560 is an average reality of what a cam, header, intake, tune package can produce with stock drivability. We have made high 570's but the camshaft needed does effect the low speed driving a bit. Not too mention torque below the curve suffers.

This is a 100HP rear wheel gain which is quite a feel from stock. Everyone is always shooting for that big max power number yet its so unimportant for a street car. You really want great torque and good overall average power.

The problem with stroking is going to be with piston support. The longer stroke really gets the piston further down the bore which can cause piston rocking and lose of good oil control. The stock LS7 block is really at its limit at 4.000" If you did want big cubes you would be better off with a whole new motor and bore and stroke it. Now you are into big money and could be taking the project into no mans land!

Maybe you can hook up with someone with a properly setup cam/header car and see how you like it!

Howard

With a big stroke is when you hear of people going threw oil on a regular basis right?

[DynamicTuningSolutions]

That's one of the issues with long stroke. The other is a shortened skirt on the piston.




BTW: Short skirts in general aren't bad but not on your piston... (Oh wait, that's not so bad either!) :rofl: :rofl:

[bryan@LME]

With the longer sleeve length of the LS7 block 4.100" and 4.125" strokes are good options when looking to make a street driven power house. The piston design is crucial as well as the proper ring combination. If both are chosen correctly, along with the proper cylinder preparation, the engine will have great oil control and durability.

[bigblock427]

That's one of the issues with long stroke. The other is a shortened skirt on the piston.




BTW: Short skirts in general aren't bad but not on your piston... (Oh wait, that's not so bad either!) :rofl: :rofl::iagree: :rofl: :rofl: :rofl: