255cc intake, 95cc exhaust, 69cc chambers Virgin A356 aluminum castings 6-bolt head casting with reinforced decks Advanced 11° valve angle for maximum flow and piston-to-valve clearance 2.165” intake valve (21-4N alloy) & 1.60” exhaust valve (23-8N super alloy) 0.210" intake free drop & 0.250" exhaust free drop 23-8N alloy delivers high-temp performance like Inconel without brittleness Available complete with chromoly or titanium retainers, or bare with valves Bille...

Precision CNC porting: 260cc intake, 100cc exhaust, and 69cc combustion chambers Premium Virgin A356 aluminum construction Reinforced 6-bolt head design for superior durability Optimized 11° valve angle for peak airflow and piston-to-valve clearance High-performance 2.165” intake valves (21-4N alloy) & 1.60” exhaust valves (23-8N super alloy) Generous valve free drop: 0.210" intake, 0.250" exhaust 23-8N alloy offers Inconel-like heat resistance minus the fragility Options available: full...

Power up your LS7 build with this 427" Aluminum Short Block, crafted for racers and street enthusiasts chasing massive power! Designed as a direct replacement for OEM dry-sump LS7 short blocks, this beast is built for precision and durability. Whether you’re dominating the drag strip or cruising with serious torque, it’s rated for up to 1700hp and pairs perfectly with turbo, supercharged, or naturally aspirated setups. We’ve optimized it for LS7 platforms, with bore sizes matching 4.125" bloc...

Build serious power with this 427" LS Short Block, available in three performance configurations to match your horsepower goals. Assembled with tight tolerances and premium components, each package is tailored for street, strip, or full drag duty. Choose your desired output and piston volume, and let this short block become the foundation of your LS performance build. Need help picking the right cam? Call 210-446-0960 for expert recommendations! Explore the components in each configuration: ...

Kick your LS7 build into high gear with this 427" Short Block, crafted for everything from street/strip cruisers to drag strip beasts! Available in two setups—1300hp for versatile performance or 1700hp for max power—this short block is your foundation for LS7 engines with a 4.125" bore. Whether you’re boosting a daily driver or chasing low ETs, it’s built to deliver, with pre-installed camshaft and sealed-up kits for easy integration. Call 210-446-0960 to pick the perfect heads and tune for y...

Fire up your LS build with this 441" Short Block, your go-to for turbocharged street rockets and drag strip champs! Designed for LS platforms like LS3 or LSX with a 4.125" bore, it’s built to handle 1000-1400hp with ease, perfect for single-turbo street cars or moderate drag setups. This short block comes loaded with a pre-installed camshaft kit, sealed-up components, and a turbo-ready oil pan for boost-hungry builds. Want to nail the perfect setup? Call 210-446-0960 for head and tuning advic...

Launch your LS7 build into overdrive with this 441" Short Block, engineered for street/strip dominance and big-torque thrills! Perfect for LS7 enthusiasts chasing 1000-1500hp, this short block is a powerhouse for street cruisers or weekend drag racers. Built for 4.125" bore LS7 blocks, it’s ready for turbo, supercharged, or naturally aspirated setups, delivering smooth power with pre-installed camshaft and sealed-up kits. Need help picking heads or tuning? Call 210-446-0960 to dial in your dr...

Cathedral Port R2: .617”/.614” valve lift with 1.7 rocker 231/236 duration @ .050” 112 LSA + 4° advance Cathedral Port R3: .621”/.615” valve lift with 1.7 rocker 235/244 duration @ .050” 114.5 LSA + 4.5° advance

Craft the perfect camshaft for your LS engine with a custom design tailored to your build’s needs! We focus on picking the ideal lobe to match your engine’s setup, ensuring top performance for street, strip, or drag racing. With countless lobe options out there, each with unique ramp rates, it’s not just about lift and duration. Two lobes might share the same .050” duration and lift, but how fast they move the lifter can make or break your build. Our goal? Nail the right lobe to keep your va...

Jumpstart your LS build with this Dart LSN SHP Engine Block, the perfect foundation for street/strip brawlers or drag-ready LS engines! Prepped for LS platforms like LS1, LS3, or LSX with a 4.125" bore, it’s ready to support 700-1500hp for supercharged street cars or single-turbo drag setups. Fully machined with cam bearings, freeze plugs, and oil galley plugs installed, it’s a time-saver for your custom project. Call 210-446-0960 to match it with the right crank and rods for your build! Her...

Ready to build a monster LS engine? This Dart LSN SHP Engine Block is your starting line, prepped and primed for street/strip heroes or drag strip titans! Machined to perfection for LS platforms like LS3, LS7, or LSX, it’s built to support 800-1800hp with a 4.125" bore, making it ideal for turbo, supercharged, or naturally aspirated setups. With cam bearings, freeze plugs, and oil galley plugs already installed, you’re steps ahead on your custom build. Need help choosing cranks or rods? Call ...

Rev up your LS or LT engine with these Link-Bar Lifters, a killer upgrade for street and strip builds! Designed to replace flimsy OEM plastic trays, they use a sturdy link-bar system to keep your valvetrain rock-solid. Perfect for LS1, LS3, or LT1 engines aiming for 400-800hp, they ensure quiet, precise performance up to 7,400 RPM. Call 210-446-0960 to match them with your cam! Here’s what powers these lifters for your LS/LT build: Feature Link-Bar Lifter Details ...

Boost your LS engine’s performance with these precision hydraulic roller lifters, tailored for street and strip LS builds! Suited for LS1, LS3, or LSX engines targeting 400-900hp, they rev smoothly up to 7,800 RPM, ideal for naturally aspirated or mild boost setups. With fast valve response and reliable oiling, they’re a solid pick for power. Call 210-446-0960 to align them with your camshaft! Here’s what makes these lifters shine in your LS build: Feature Hydraulic Rol...

Power up your LS engine with these premium hydraulic roller lifters, engineered for street/strip and drag-ready builds! Perfect for LS1, LS3, or LSX engines hitting 500-1000hp, they support high spring pressures and rev cleanly up to 7,800 RPM. Ideal for supercharged or naturally aspirated setups, they deliver precise oiling and fast response for top-end performance. Call 210-446-0960 to match them with your camshaft! Here’s what fuels these lifters for your LS project: Featu...

Unleash your LS engine’s potential with these high-performance hydraulic roller lifters, crafted for street and drag builds! Designed for LS1, LS3, or LSX engines hitting 400-1000hp, they handle up to 8,000 RPM with ease, perfect for naturally aspirated or boosted setups. With precise oiling and quick valve response, they’re built to keep your valvetrain humming. Call 210-446-0960 to pair with your ideal cam! Here’s what drives these lifters in your LS build: Feature Hy...

Elevate your LS engine’s performance with these high-performance hydraulic roller lifters, built to thrive in high-rpm street and drag builds! Designed for LS1, LS3, or LS7 engines pushing 500-1200hp, they handle intense spring pressures and deliver rock-solid reliability up to 8,000 RPM. Perfect for turbo or naturally aspirated setups, these lifters ensure precise oiling and quick response for max power. Call 210-446-0960 to pair them with your cam and valvetrain! Here’s what makes these li...