Hardcore Horsepower & Dyno

Hardcore Horsepower & Dyno American V8 Engines, Street, Strip, Off Road, Marine, Turbos, Blowers, N2O, Carb/EFI We do not offer engine rebuilding or work on any vehicles.

We build, dyno tune, and sell brand new high performance Chevy V8 engines only. We're experts in aftermarket EFI, Blowers, Nitrous, and plain-'ol pump gas power! We only build brand new, complete high HP Chevy V8s. No LT/LS engines either.

01/19/2026

Still had my chassis dyno in ‘16 too

01/19/2026

I even gave the Ford’s a lil love in 2016

…mind numbing mid 2016
01/19/2026

…mind numbing mid 2016

01/19/2026

My 2016 started off great! Jan 4 on my dyno

When you don’t have it, make it! Had to fab up an adapter today for my LSM valve spring compressor. Engine is a blown 43...
09/09/2023

When you don’t have it, make it! Had to fab up an adapter today for my LSM valve spring compressor. Engine is a blown 434ci SBC w/ AFR 245 heads and T&D shaft rockers. None of my existing valve spring compressors (I have quite a few!) would work for a variety of reasons. So I grabbed a spare mounting bar and milled up this adapter. It worked great so now it’s a keeper. My fabb’d bar is the lower one in the picture. Had to add the middle hole. Mill 1” wide x .060” deep flats exactly on center for the existing stud holes. And elongate both outer holes just a bit. Stock bar is at the top for comparison. And the PSI double springs checked out only loosing 20 lbs from new after about 25 dyno pulls. 😁

It's too cold to dyno in TN! But as soon as the temps warm up again, this big dog will be on the dyno. 540cid Big Block ...
12/23/2022

It's too cold to dyno in TN! But as soon as the temps warm up again, this big dog will be on the dyno. 540cid Big Block Chevy "Big and Ugly"! Should crank over 1,000hp with Holley Sniper EFI and a TBS 10-71 blower.

02/13/2022

I’ve only done a little tuning on this engine so far. Still letting the Holley Sniper learn. On it’s 5th checkout pull at only 65% TPS already making 688hp at just 3.7psi boost. 427ci SBC 6-71 TBS blower running my custom HR cam and 93 octane UL right out of the pump.

Quick install tip for flat tappets. Open the box upside down. Then simply apply the breakin assembly l**e to the tappet ...
01/02/2022

Quick install tip for flat tappets. Open the box upside down. Then simply apply the breakin assembly l**e to the tappet face. Let sit for a few minutes and some will run down the sides making the lifters ready to install.

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Franklin, TN
37064

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