The Parts Bin – Hamilton Blocks for 6.7L Cummins

In the latest visit to the parts bin, we’re talking 6.7L Cummins blocks from Hamilton Cams. These are very cool replacement blocks with lots of upgrades and can be better than true factory 6.7 liter Cummins blocks. Let’s get to it.

Advantages of a Hamilton Cams Block

The 6.7 liter Cummins block from Hamilton has some serious advantages over stock blocks. We see three major upgrades that make this the block to use for your big power Cummins.

1. Larger Head Studs
The replacement blocks from Hamilton Cams have some serious advantages over a stock block. First, the Hamilton Cams block comes standard ready for 14mm head fasteners vs. 12mm fasteners on a stock block. A 14mm head stud is the best, lowest priced fastener we recommend to hold big power.

Hamilton Block Head Studs

2. Larger Mains
The second advantage is the mains. On a factory common rail, the mains use 12mm hardware. Hamilton has drilled and tapped the mains for 14mm (as all good competition blocks should be). Again, this is critical to holding big power.

Hamilton Block Mains

3. Camshaft Bushings
The last major advantage we see for this block are the camshaft bushings. Hamilton has put bushings in all seven journals. This is much better than the stock block’s single bushing. This allows you to run steel camshafts, which are much stronger than cast shafts. In all reality, this block comes with $2,000-$3,000 worth of machine work built in to it.

hamilton block bushings

Stay tuned for upcoming videos on our build with this block. We’ll show you how we plan to build this for maximum power.

If you have any questions about this or any other diesel engine, turbo, or more, give us a call at 435-962-9555 or text us at 435-962-9506 or leave us a comment below. Don’t forget to follow us on YouTube, Facebook, and Instagram for more product tests. Leave us a comment below about what you’d like us to cover next.