WARNING!! THIS IS A STUPID CRAZY LEVEL PERFORMANCE ENGINE! SIDE EFFECTS INCLUDE WHIPLASH, AND THE ABILITY TO MAKE YOUR PASSENGERS PISS THEIR PANTS. NOT FOR USE IN INCLEMENT WEATHER. NOT DESIGNED FOR STREET USE, ITS JUST TOO MUCH.

!!NOW WITH THE ADDITION OF FULL CERAKOTE!!

OVER 700HP NA WITH A 2200 CAPABILITY WITH BOOST

STUPID POWER

COMES AS A LONG BLOCK, DIFFERENT OPTIONS AVAILABLE FOR COVERS OR TURN KEY PACKAGES

THIS IS BUILD FOR TURBOCHARGER, FOR NA APPLICATION SEE MAX EFFORT NA 427

ALL PRO CYLINDER HEADS FULLY BUILT

!! FULL CERAKOTE FOR PISTONS, BLOCK, HEADS, CHAMBERS !!

DIFFERENT CAMSHAFT OPTIONS AVAILABLE FOR EXAMPLE:

BTR 400+ BIG TWIN TURBO CAMSHAFT

246/26X .619"/.619" 115 LSA

INTAKE LOBE LIFT @ TDC: 0.07821

The new BTR Big Twin Turbo cam was designed for use on 82mm or larger twin turbo setups or single 102-106mm turbos in 400-427 cubic inch combos. This cam was designed for use in high horsepower,max effort applications looking for more power at higher rpm , and offers an ultra-aggressive idle. This cam has the potential to push a 400" engine well over 2000 rwhp and into the 6 second range in the quarter mile. This cam uses ultra stable lobes designed in house and Spintron tested for higher RPM potential, and was designed to be extremely durable at high rpm when combined with a lightweight valvetrain.

Due to higher rpm potential combined with greater cylinder pressure from boost we recommend the use of our SK703 spring kits, larger diameter hardened pushrods, and a quality lifter such as a Johnson ST2116LSR or ST2126LSR.

OR FOR EXAMPLE:

BTR 400+ SMALL TWIN TURBO CAMSHAFT

237/25X .619"/.619" 117 LSA

INTAKE LOBE LIFT @ TDC: 0.05840

The new BTR Small Twin Turbo cam was designed for use with smaller twin 66-76 mm setups or up to a single 94mm turbo in 388-427 cubic inch combos. This cam is recommended for street/strip type applications looking for more power and rpm , and offers an aggressive idle. This cam uses ultra stable lobes for higher RPM potential, and was designed to be extremely durable at high rpm when combined with a lightweight valvetrain.

Due to higher rpm potential combined with greater cylinder pressure from boost we recommend the use of our SK703 spring kits and larger diameter hardened pushrods along with a quality lifter such as a Johnson ST2116LSR or ST2126LSR.

OR FOR TRUCK APPLICATION:

BTR 400+ TRUCK LS TURBO CAMSHAFT

225/24X, .629"/.629", 116 LSA

BTR is proud to introduce this new addition to our already impressive lineup of Gen III/IV turbo camshafts. The new 400+TruckTurbo camshaft was designed for those customers running a stroker 400-416 cubic inch turbo combination . Designed to be used with smaller twins or single turbos in the 70-76mm range for use in mild towing or daily driven applications. This cam will help your stroker turbo combination produce additional horsepower throughout the curve, while delivering excellent street manners. As with all BTR offerings, these cams were designed to help achieve the highest overall power curve while also maintaining strict valvetrain stability and durability standards.

The use of BTR dual platinum spring kits is required due to high valve lift and increased rpm potential.
We also recommend the use of hardened pushrods in power adder applications.
May require a aftermarket converter in some truck applications.

The use of E85 or higher octane fuel may be required with the addition of higher boost pressure.

427-430 CUBIC INCH

DART AFTERMARKET BLOCK

ARP STUDDED TOP AND BOTTOM END

ALL BIG 3 FORCED INDUCTION ENGINES REQUIRE TOP AND BOTTOM END STUDDING AND FORGED ROTATING ASSEMBLY/PISTONS

CNC MOTORSPORT ROTATING ASSEMBLY-BALANCED

Chevy LS3 427 Rotating Assembly , Eagle 4340 Forged Steel Crankshaft 4.125 Stroke, Eagle 6.125 H-Beam Rods, Mahle Forged -8cc Dish Pistons, 58 Tooth OR 24 TOOTH Reluctor, Rings

BTR PLATINUM SPRINGS

BTR RETAINERS, KEEPERS, HAT SEALS

JOHNSON SHORT TRAVEL OILING LIFTERS

ARP TOP AND BOTTOM STUDDED

KING/CLEVITE BEARINGS RACE COATED

.080 CHROMOLY PUSHRODS FROM BTR

SHAFT ROCKERS

ADDITIONAL HEAD BOLT ROW FOR ADDED CLAMPING FORCE TO REDUCE HEAD LIFT UNDER BOOST

PREMIUM VALVES

3 ANGLE VALVE SEATS