Machinehead Powersports

Machinehead Powersports I have been doing this type of work for 32 years, and I'm not done yet! Complete instalation/custom fab/design facility. We can install your parts/our parts.

Race car cages and complete custom chassis fabrication. Custom built engines for Drag, Road Race, Muscle Car, Hot Rod, Off Road and Marine. Custom disk brake kits or ordinary kits can be installed and tested. Complete Original H-O racing suspension systems can be installed. We can also locate a special car for you, through our locating network, and have it delivered and modified to your specifications.

04/01/2026

The GTO

1967 GTO delivery a few weeks back. Customer loves it. Had to do some unusual carburetor tuning. Transfer slot fuel feed...
03/31/2026

1967 GTO delivery a few weeks back. Customer loves it. Had to do some unusual carburetor tuning. Transfer slot fuel feed was out in left field at 0.117". Restricted it down to 0.076" to get rid of the extreme rich cruise mixture or 10.4:1 AFR. went from 82 square jetted out of the box to 78 primary and 93 secondary coupled with a 10.5 power valve and its spot on. 14.1 cruise (e10 fuel) 13.2 idle and 11.2 WOT (again e10 fuel!) Fuel curve is t**s. Went to a 0.037 squirter also from 0.028. Thanks to Otto Tharp for the old H-O Racing headers!

Delivered back home. 1966 Ford Fairlane GTA 390FE. Runs great took it for a short putt around the property. Replaced pus...
03/31/2026

Delivered back home. 1966 Ford Fairlane GTA 390FE. Runs great took it for a short putt around the property. Replaced pushrods and completed break in procedure. Installed factory console and shifter. Replaced heater core.

Setting up the ring and pinion on the 67' Goat. Forged Yukon posi, Yukon forged axles and a TA girdle rear cover. Replac...
12/27/2025

Setting up the ring and pinion on the 67' Goat. Forged Yukon posi, Yukon forged axles and a TA girdle rear cover. Replaced all the bearings and seals. This is the final pattern. 0.007" backlash. A couple thousands deep on the pinion shim to give this 8.2 BOP a fighting chance!

Original 400 out! Going to wrap up the fuel system and install the 468 this week.
12/27/2025

Original 400 out! Going to wrap up the fuel system and install the 468 this week.

12/27/2025

449 FE the effort pays!
This is wonderful audio of a well crafted set up. I dont normally have the idle at 850rpm, but it sure sounds good. Its happy at 1000rpm.
3" SS mandrel bent front to back. All tig'd with custom 3x2.5" splitters. SS Flowmaster 50 series Delta Flows

Wrapped up the FE 449 install on this beautiful 67 GT390 Fastback. All stainless 3" with Flowmaster 50 Deltas. Tig welde...
12/27/2025

Wrapped up the FE 449 install on this beautiful 67 GT390 Fastback. All stainless 3" with Flowmaster 50 Deltas. Tig welded with v-bands. Its an absolute blast with the 331 gear and TKX. 1st and 2nd are useless at anything more than 2/3 throttle and 3rd gear is pure joy.
Its stays in front of the GPS speedo. I looked down at the top of 3rd gear and the speedo was at 23mph. It really hauls ass. Im thinking 12.60s on street tires at 118mph

12/08/2025

My new favorite street combo!

12/08/2025

462 is alive!

462 Pontiac update. Fully wrapped up! Made everything fit and tweaked just about everything. Opened the oil pan holes up...
12/08/2025

462 Pontiac update.
Fully wrapped up! Made everything fit and tweaked just about everything. Opened the oil pan holes up, tweaked the valley pan into place and aligned. Carved the bottom of the intake runners to clear the valley pan. The list goes on!

462 Pontiac update. Got the lifters reassembled and installed. Heads are bolted down, Manton pushrods and Harland Sharp ...
11/17/2025

462 Pontiac update.
Got the lifters reassembled and installed. Heads are bolted down, Manton pushrods and Harland Sharp rockers installed and pre-loaded to 0.070" lifter depression. Final compression ratio came to 10.38:1. 0.027 thick Cometic, piston at 0.009"-0.011" in the hole.

Address

4950 Bell Springs Road
Dripping Springs, TX
78620

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm
Saturday 9am - 5pm
Sunday 9am - 5pm

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