350 SBC Build - Local Machine Shop vs. Buying an Online Short Block

I’m working on a 350 SBC project and recently ended up with a block that has cracked oil passages in the cam bearings, so I’m essentially starting from scratch. I’ve received a quote from a local machine shop for around $3k to provide a new block, bore it out, deck it, and include new pistons, rods, rings, and bearings.

Given the cost, I’m wondering if it might be better to just buy an online short block for that price. I’m also considering looking for another junkyard block, but I’m worried about getting burned again.

What are your thoughts on whether it’s better to go with the machine shop or purchase an online short block? Any advice or experiences would be greatly appreciated :wink:

Hi pals,
If you enjoy the building process and have the time and resources, a local machine shop might be the way to go. If you’re looking for a quicker and potentially cheaper option, an online short block could be a good choice.

I faced a similar dilemma with my engine rebuild. I decided to go with a local machine shop because they could customize everything to my exact specifications, and I trusted their work more than a generic online short block. The cost was comparable, and I had the assurance of local expertise and quality control. However, if you’re considering an online short block, make sure to buy from a reputable seller and verify reviews and warranty terms. Junkyard blocks can be a gamble, but sometimes they offer good value if you can inspect them thoroughly beforehand. Balancing cost with reliability and quality is key—what matters most is your confidence in the end result.