See All 22 Photos 9.The front view of the block makes it easy to spot an LT1. Notice the four holes where the water pump bolts up. Unlike a 350 small-block, the intake manifold on an LT1 is dry.

There are few finer moments than the first time you wind out all the gears in your LS1-, LS6-, LS2-, LT1-, or TPI-powered ... electric water pumps are still worth over a tenth at the track and ...

Reverse-flow cooling (three water pump types) was adopted to compensate ... 06-07.This is our machined and prepped CN 10125327 LT1 block with two-bolt mains. The LT1 redesign is what makes this ...

Would it occur to you that a modern Chevy LTl engine is capable of producing more than 420 horsepower with just a handful of bolt-on parts ... chain set and a water-pump drive gear.