Drew is an amazing machinist with unmatched skill. Super knowledgeable one oh the best head builders around. He constantly busy due to him and Chazs skills. I never go to any other place for my cylinder head needs. Thank you guys for all your help and years of expertise!

I was extremely satisfied with the work I had done on my ls3 heads. Drew and Chaz are extremely knowledgeable and it is very easy to see the pride taken in their work, in addition to the care and friendliness dedicated to each customer. From someone who works in the field, from start to finish the entire process was unrivaled by any other company. I would recommend these gentlemen to anyone!

My 2004 Tacoma was burning coolant, and it turned out to be cracked heads. I couldnt find a machine shop in Denver that would be willing to source me new castings so I didnt have to use junkyard heads. Well, Drew was able to quickly find me some brand new beautiful castings, and build my heads. His work is professional and immaculate. He communicated well with me throughout the process as well. During installation, I tipped one of the heads too far onto its side and all of the buckets went flying in my garage. Drew labeled each bucket to its corresponding valve when he built my heads and checked valve lash, so I was able to get them all back in the right spot without re-checking lash.

Took my cylinder head in for inspection and milling if needed, Drew and his son are awesome you can tell this is more than a job to them it’s an art and hobby customer service and turn around time were outstanding he kept me up to date and when I came to pick up he was showing me things he was working on and you could just tell he his passionate about his work I will always go here for cylinder head work, honest, good prices and great work Thanks Drew!

I have had Drew work on a few Cylinder Heads from different vehicles and always have received friendly welcoming, great prices, and most important amazing quality work done.Thanks Drew.

Needed to have the cylinder heads of my Mustang skimmed. I expected to drop them off and leave them for a week or so, but Drew was able to fit in the work same day. And the price was very reasonable! I would definitely recommend.

Super cool guy, great work, and he will clean parts for you if you need it.

This head shop will take care of you.. treats every one like its going on his car.. seen him build radial engine cylinder head for racing planes.. very OCD about it being right... I dont send mine any were else.. I know its right or I wont get it back.. Ill get a phone call letting me know that we have an issue.. but I trust what Drew tells me.. known and dealt with him and his shop for 19 years ..

Best cylinder head machining in Colorado. Ive been coming to Drew with all my cylinder head needs for 20 years.

Drew is super knowledgeable, friendly and honest. I would highly recommend this shop for any head work.

What a great guy! Great work!

I went here to get my heads done for cast iron, but he was unable to help because of how busy he was. He was an absolute gentleman, he took his valuable time to advise me, give me tips and recommended other great places I could go when he did not have to. All around great guy, highly recommend doing business with him. I feel like I made a new friend.

I Want to say thank you so much drew you are the man I really appreciate everything! Got some B25 heads super tech valves, super tech springs!! Remember tip your machine guy.

Great overall experience - small enough to know your name large enough to get you taken care of. Drew took the time to listen to my engine issues and ran through my options. The heads came back looking great after the inspection, slight mill-work and cleaning. Also re-tapped/cleaned my spark plug threads. Very reasonable rates, quick turn around, professional service. Great office/shop too. Will be back if needed and would recommend to anyone - I think he does head work for just about any engine (including airplanes!!).2019 update - spun bearing, engine taken down and heads cleaned/machined. Drew and his son did a great job (as expected) and heads are ready for the summer. much appreciated.

Just all around great person

Immaculate head surfacing work completed. Super friendly, experienced and very knowledgeable. Got my cylinder heads cleaned and surfaced the same day, actually in about an hour! Price was very reasonable and a bit less than some other well known machine shop. A+

Always does the best work. Our shop only uses Drew and will continue to only use Drew. Cant put a price on Quality and taking Pride in what you do.

Drew and his team our fantastic. Their knowledge, customer service and workmanship are second to none.

I have been using Heads by Drew in the automotive industry in Colorado for almost 20 years. Whether working on a domestic, import new or old I wouldnt trust my heads or customers heads to anyone else. Thanks for the years of top quality work!

These guys do it right. They took care of my B25 Subaru heads after a previous machine shop did sloppy work. I cant thank these guys enough. Keep up the good work guys. I will be referring all my friends here. Go here if you want QUALITY that you can depend on.

Quality workmanship here. I will always recommend this place to friends!

This place is the best! Quality of work and knowledge is top notch!

Best in the business. Over 10 years of quality head work on all my cars (street and racing) highly recommended!!!

Great work, reasonable rates, highly recommend Drew! He has done a few cylinder heads for me, and also built a shortblock for me. Did great work, was VERY reasonable with rates, and a very nice guy to deal with! I highly recommend him!

Amazing place for your cylinder head needs, the owner know what is doing, top quality service!

Called Him For A Price Straight Forward On Everything Awesome Man Definitely Will Continue Coming Here For Any Future Head Work!

Friendly guy and excellent customer service! Head is great!

Excellent workmanship done right the first time. I use his services for all of my cylinder head repairs and never been disappointed.

Will never go elsewhere. Ported my 2004 cobras eaton blower. Hog made 496/496 on the rollers! Not bad for OEM blower! A++++ DREW!!!

Reasonable Prices and quick turnover!

Amazing work by a very great guy

Drew does good work!

Very honest and acurate diagnosis

Always worth the wait.

Very knowledgeable excellent work

They are the best in Colorado

Awesome guys. Always takes good care of us.

Drew is very knowledgeable and ready to help!

Drew is the man

Great guy

Best of the best

We have used Drew for all our cylinder head needs for several years. No one better in the Denver metro area. Would not trust anyone else with the type of work he performs.Dale Alternative Auto Care

Best in the biz!