It may be a small block engine, but it has a lot to offer. Try the LS7 crate engine today.

This small block V-8 LS7 crate engine has great expectations, displacing big block cubic-inches at seven Liters or four twenty seven cubic inches & big block power of five hundred horse power at six thousand two hundred revs per minute while at the same time managing four seventy five pounds per foot of torque with a four thousand eight hundred revs per minute range. Enhancing this power and elevated revving capacity are particulars that include cylinder-heads with CNC or Computer Numerical Control intake and car exhaust and combustion ports and chambers respectively. Additionally, the intake-valves and connection rods find their high-tensile-strength from lightweight titanium. The LS7 crate engine is hand assembled at General Motors' Powertrain Performance Build Center, Wixom, Mich.

When GM exposed the V-8 LS7 crate engine, the foremost query was, "How detuned have they made it?" Besides, notwithstanding its five hundred plus horsepower, the most up-to-date and supreme seven liter smallblock only manages one point one eight horsepower for each of its four twenty seven ci, rather docile for such an engine with colossal CNC-ported cylinder-heads and an eleven point oh to one compression running up to seven thousand.

However, closer scrutiny is necessary. Contemporary industrial unit engines are put together to exceed astounding resilience values. For instance, GM's typical permanence analysis consists of just about three hundred hours of function at full throttle, in the midst of the engine cycling between maximum HP & torque under highest load. The LS7 crate engine needs to also exceed a thermal-shock check, which forces engine coolant varying from around two hundred and fifty degrees F to negative forty degrees F via the block as it is running. To site an example, even the cream of the crop, limited edition Corvette Z06, LS7 crate engine must be available, serviceable, and with warranty.

The LS7 crate engine shares very similar fundamental structural design of the most recent Gen IV modifications of the small block, although it is tweaked with a four point one two five bore and four-inch stroke. Key departures from the base-C6 Corvette's 6.0L LS2 consist of a reworked valve-angle of twelve degrees judged against fifteen degrees for other Gen III/IV series, offset-intake valve location and rockers-arms, pedestal mount roller rockers arms, substituting the customary Gen III/IV rockers, and entirely modified intake & exhaust-port profile and position. The LS7 crate engine cylinder-heads comprise fully-CNC-ported high flow cylinder-heads with elevated intake-ports substituting the well-known LS1/LS2 "cathedral" ports. The revamp to a more conventional racing rectangular-port blueprint was ensured by the offset-intake-valve pushrods. To accomplish the LS7 crate engine seven grand revs per minute redline, the maximum ever statistic for a production pushrod, V-8, low weight titanium intake & sodium-packed exhaust valves, in conjunction with ovate-wire conical beehive-style valve springs are used.