The biggest (in cubic inches) factory small block was in the C6 Z06 Corvette, starting in 2006. It had a displacement of 7.0L (427 cu in).

Can't really call it a "Chevy" engine anymore, since GM went to corporate engines in the 70s (remember the lawsuit where people buying Pontiac, Buick, Olds sued GM saying they expected engines that were unique to the make of their car?).

Steve

 

Around here there is a 2.4 with 75K miles for $562. Higher mileage engines can be had for a lot less.

You can get engines for much less mileage in the $500 range.

What do you mean by "build it as a spare", a total rebuild down to rings, bearings, etc? If so, then technically mileage doesn't matter much since you will be replacing the wear parts.

Steve

 

agreed and exactly that....when mine gives up or if I wanna just swap it out.

 

All those parts and gaskets and seals, could cost way more , especially if you have to bore it and replace the pistons and rings

 

All depends on who you know and what deals you can get. I would think an overhaul kit for these would be cheaper than a V8 kit and any shop work based on discounts and who does it. First Id want to research how far you can push this engine ( compression ratios, bore//stroke...etc.. ) to see if its able to squeeze out a little more power without sacrificing mpg or having to flash anything....as we know some of this electronic crap can throw codes and that Id rather not deal with but if it can be built and dropped without much more than that Id be happy to play with a block.

 

Bigger pistons means new piston sleeves, you can go to 3 litres, but then you need some more fuel, bigger injectors, and then HP Tuners to set it all up.
Haun has or had a turbo kit with all the fixings and so does ZZPerformance and they have a supercharger kit, me, I’ll just cruise on down the road bone stock , the 2.4 comes with more horses under the hood then my 88’ 305 C1500! Hauling about half the weight, so I’ll still get to that speed limit pretty quick and keep up to the traffic flow, running down the highway watching for Smokey!

 

Each line is different, very different. Chevy distributors turn clockwise, Pontiacs turn counter clockwise... gearing, bore and strokes, heads are all different... nothing interchanges. so not the same engine or anywhere close.

 

A longer stroke would boot compression as well as just being decked, same sized pistons, less fuel.

 

Be careful with any of that, these are already interference engines, close tolerances between pistons and valves.

 

Yes due to the "extra swept volume" in a stroker. The 2.4 is basically a stroked 2.2 (size wise) but the 2.4 block has much more beef in the block.

my '08, 2.4L is running 10.5 :1 C/R now, but only because GM uses VVT. Just adding a Turbo would really add the zoot.

And RJ makes a great point. Not much tolerance in there.