Remember those COPO Camaros of the 1960s we talked about earlier? The baddest of the bad, the stuff of bedroom posters and “I swear I saw one” stories, the kind of car the uber-rich still build replicas of today? Well in 2011 Chevrolet modified a modern Camaro in a COPO sort of way and took it to SEMA, and the response was overwhelming. So they built it for real. And at its heart, you could have this: a 5.7-liter supercharged 350 crate engine dubbed the COPO 350.
It also takes more torque to get oversized wheels turning which saps overall output and drains the gas tank much faster than normal. Swapping to lower gears and increasing the number in your gear ratio may be enough to offset the difference. A notable exception here is diesels, which sometimes put out so much torque that the difference with larger wheels isn’t noticeable.
We will never understand why this isn’t always a default option on all new vehicles capable of off-road driving. There are times when you will need slow and steady power coming from both wheels on each axle. A limited slip differential will keep some of the single side spin down but a full locker is much better in terms of 4×4 Jeep mods. Locking both wheels to spin in unison is an easier way to get out of sticky situations. When combined with the use of a properly anchored winch, there’s almost nowhere you can’t go.
A crate engine or crate motor is a factory-built engine that arrives at your doorstep perfectly timed, balanced, and blueprinted, and ready to provide motive power for any project you have laying around. Included parts are a fully assembled block consisting of crank, rods, and pistons, a fully assembled head consisting of valves, cams, and associated parts, and often a carburetor for fuel delivery.