LandSpeed Development

A little V12 vintage Ferrari work finished up today!

Completely reworked set of Mopar Sprint Car heads ready to tear up the track in 2026!

Sneak peek at a set of Wally award winning NHRA legal superstock LS3 cylinder heads! 9,500+rpm solid roller

I dyno pull on the 10.5.1 compression 427 ci on 93 octane built for future boost making 755 horsepower!

A thing of beauty! 427 ci 10.5.1 compression for future boost / twin turbos. Made 755 horsepower and over 600 ft.lbs of torque N/A with a custom CMP 237 duration baby camshaft and Performance Design Carbon TRc intake manifold! This engine uses our LandSpeed Stage 3 R LS7 GM 6-bolt cnc ported castings. Will be a monster once the twin turbos are installed!

Custom Brodix LS3 BR3 6-bolt casting for sale is a 1 of 1 set of Stage 4R CNC ported small chamber heads. Will work with LSA/LS9/ LS3 applications. Can be used on boosted, nitrous, or NA engines with a minimum 4.060” bore. Heads are 90% complete buyer decides final parts that heads will be assembled with and final chamber size needed for build. Fully assembled ready to bolt on heads can ship within 4-7 days from purchase.

Cylinder head features:

-Brodix BR3 15 degree 6-bolt custom castings
-Stage 4R fully cnc ported by LandSpeed
-5-angle intake valve job
-50 degree full race radius exhaust valve job
-293 cc intake ports
-105 cc exhaust ports
-63-65 cc cnc combustion chambers (your choice )
-combustion chambers have been softened and hand finished
-2.165” hollow stem intake valves
-1.600” Ferrea super alloy or hollow stem exhaust valves (your choice)
-PAC 1207/8/9x spring kit with titanium retainers, locks, locators, and stem seals
-Heads will be shipped to you fully assembled and ready to bolt on engine.

Recommend intake manifolds

-XS concept design LS3
Or
-BTR LS3 trinity intake manifold

Recommend rocker arms

-stock with CHE trunion upgrades
Or
-Jesel shaft mount aluminum sportsman fully adjustable rocker arms.

$4,199.00 shipped

LandSpeed also offers custom camshafts for all LSx applications.

Which LS7 intake manifold are you going with?

Some BTR LS3 Trinity intake manifold porting / port matching this week.

LT1 & LT2 factory intake manifolds ported and ready to ship! These are the perfect add on to any bolt on cold air kit, ported throttle body, heads/ cam set ups. They add good horsepower and torque across the rpm range as well as added wide open throttle sound!

Available and ready to ship: Max Effort hand ported LT1 intake manifold. These LT1 factory ported intake manifolds seem to pick up more power than most of the other factory GM intake manifolds. Includes deep intake runner porting and polishing of factory mis matches and steps. Throttle body area has also been reshaped and ported to accommodate stock 87 mm TBs. Clean, bagged, and ready to ship $375 with your stock LT1 intake manifold core in exchange. $600 with no core exchange.