Mountain Valley Performance

Hall of Faith Cowboy Stacy Shepherd 

on Google

a month ago

I was planning to machine my heads on my 350 sbc, because I had a blown head gasket. So, I took them to Bobby. He said, "I'd be glad to do that for you, but how do you know if the block didn't get hot also? I said "I have no idea, how would one know"? He said we'd have to pull it apart and machine it, or else you're just guessing. "It's totally your call though". Of course I was budget conscious. But, my Dad gave me this 88 suburban. And, I want it to run good for a long time. Integrity is very important to me. Turns out, in... read more

Tyler Haase 

on Google

5 months ago

How do I leave a negative 5 star. Had a 460 built supposedly. 1.5hrs in and compression is well under 80psi and no cylinders are even close to within 10% motor was still full of gunk never cleaned the block or heads. Installed a piston upside down with all his "experience" he couldn't even see that . If i had brought the motor back to him he would have lied about what went wrong 100%.TOTAL HACK. DO NOT GO HERE EVER 

ROBBIE ALLEN 

on Google

9 months ago

Do not leave anything at this place of any value. If the owner wants it, he will steal it, along.with your deposit. Stole my motor and $8000.00. 

Alice Everett 

on Google

11 months ago

Just don't 

Taylor Reeves 

on Google

11 months ago

Brought a 7.3 powerstroke block to be machined and Bobby did a beautiful job. The block and deck is beautiful and he installed new cam bearings and had to cut a sleeve in because bore was cracked. Cant even tell there is a sleeve. Everything looks perfect! Thank you Bobby.