Chevy Street Long Block Packages

All of our long blocks use seasoned, hand picked cores that are thermo cleaned, checked for core shift, magnafluxed, shot blasted, equal and parallel decked, align honed, centerline perpendicular bored, CK-10 honed with torque plates, clearanced, screw galley and core plugs installed, cam bearings installed, block prepped and lifter bores honed, cleaned and painted; crankshafts are thermo cleaned, magnafluxed, shot blasted, precision ground and micro polished, factory hand picked rod cores, thermo cleaned, shot blasted, precision stage III reconditioned and side dressed; high quality precision pistons, moly rings, performance bearings and seals.  Our Sehr Street Long Blocks add our Sehr high torque complete cylinder heads, cam and lifter kit, street push rods, rocker arm kit, and timing set. Components are assembled and set up for the combination. All these engines run on pump gas and are the right choice for the person who wants a quality engine at the best price. 

This engine is a great choice for the person who is looking for a good fuel efficient engine without sacrificing low end torque. GM designed this engine for mid sized cars and trucks to provide good power and be fuel conscious as well. This engines 3.766” bore and the 3.48” stroke provides good all around power and torque for most general applications. The compression ratio of this engine is 8.8:1 with our high torque street 68cc cylinder head and uses a stage II 5.7” connecting rod. We use a custom street camshaft for optimum efficiency and features heavy duty parts to achieve maximum reliability. The street 305 engine is not a high RPM power house, however it does provide super reliable efficiency for most all street applications.

Everyone seems to have forgotten about the super 327 engine, but we didn’t. This engine has quick RPM capabilities due to the larger 4” bore and the shorter 3.25” stroke. This engine is a great choice if one desires good mid range torque and power with great response. This engine is designed for a lighter vehicle that requires a higher RPM range and can have some fuel saving characteristics when the correct camshaft is used. This engine uses a stage II 5.7” connecting rod and the compression will be 8.5:1 using our high torque street 72cc cylinder heads. We use a custom street camshaft for great efficiency and use heavy duty parts for maximum reliability. The 327 engine is a good reliable engine for light cars and trucks using a lower gear and requiring a higher RPM range.

Not too many people know of this smaller cubic inch stroker engine but we know quite a lot about it. This little torque monster is the perfect combination of torque and power with a good potential of fuel economy. Designed for good low end torque due to the smaller 3.766” bore and the larger 3.75” stroke, this engine is a great choice for lower weight towing capabilities or a heavier weight car. This engine utilizes a stage II 5.565” connecting rod and has an 8.9:1 compression ratio using our high torque street 74cc cylinder heads. We use a custom street camshaft which enhances efficiency and we use heavy duty parts for our greater reliability requirements. This engine is not designed for higher RPM use, but is a good choice for one who needs the torque for towing or has a heavier vehicle with a higher gear. This engine can save some fuel as well due to the torque increases.

This is one of our most popular street engines. This engine features good all around torque and power capabilities and is a great choice for all cars and trucks for general driving or light towing requirements. The power and torque curves are larger due to the 4” bore and the 3.48” stroke and will work very well in most applications. This engine features an 8.8:1 compression using our high torque street 74cc cylinder heads and uses a stage II 5.7” connecting rod. We also use a high torque custom camshaft for better efficiency and we use heavy duty parts for our reliability requirements. It is no secret that this is the most popular engine that GM has ever designed; however, we have taken this engine another step for better reliability and power capabilities.

This is one our most popular late model one piece rear main seal street engine. This engine features good all around torque and power capabilities and is a great choice for all late model cars and trucks for general driving or light towing requirements. The power and torque curves are larger due to the 4” bore and the 3.48” stroke and will work very well in most applications. This engine features an 8.8:1 compression using our high torque custom street 74cc cylinder heads and uses a stage II 5.7” connecting rod. We also use a custom street camshaft for greater efficiency and we use all heavy duty parts for great reliability. It is no secret that this is the most popular engine that GM has ever designed; however, we have taken this engine another step for better reliability and power capabilities.

Our popular de-stroked 400 engine is a great choice for the person looking for better higher RPM power and quick throttle response in an engine. Great for a lighter car or truck with a lower gear that requires more mid-range power and torque. This engine utilizes a larger 4.125” bore and a shorter 3.48” stroke which makes this combination RPM quicker than most other similar cubic inch range engines. These street engines feature an 8.7:1 compression ratio using our street high torque 74cc cylinder heads and uses a stage II 5.7” connecting rod. This engine also features a custom torque camshaft for street efficiency and we use heavy duty parts for maximum reliability. Great for lighter cars and trucks requiring more efficient higher rpm service, this engine is also a popular choice for the performance street minded person.

This engine is the most popular engine that we build. Quite a few builders know about putting these combinations together but no one puts all the technology in the 383 engine that we do to promote maximum power and torque and great reliability. This is a great combination for the person who requires more power and torque than the 350 engine with the capability for general driving as well. This is a good choice for someone who is looking for an engine for towing or street performance due to the 4” bore and the larger 3.75” stroke. This engine features an 8.7:1 compression ratio using our high torque street 74cc cylinder heads and uses a stage II 5.565” connecting rod. We use a custom street torque camshaft for more efficiency of the engine and we use only heavy duty parts for great reliability and power. This is an excellent choice for higher mid-range torque and power for towing or street performance.

This engine is the most popular late model one piece rear main seal combination that we build. Quite a few builders know about putting these combinations together but no one puts all the technology in the 383 engine that we do to promote maximum power and torque and great reliability. This is a great combination for the person who requires more power and torque than the 350 engine with the capability for general driving as well. This is a good choice for someone who is looking for an engine for towing or street performance due to the 4” bore and the larger 3.75” stroke. This engine features an 8.7:1 compression ratio using our high torque street 74cc cylinder heads and uses a stage II 5.565” connecting rod. This engine also features a very efficient camshaft and uses only heavy duty engine parts for greater reliability. This is an excellent late model engine choice for higher mid-range torque and power for towing or street performance.

Our larger cubic inch choice for the person who needs an engine that builds good all around power and torque. Great for heavier towing or for heavier street car performance, this engine will build the power and torque that one needs for more extreme uses. The large 4.125” bore and the 3.75” stroke provides good throttle response and wider power curves than the other small block Chevy engines. This engine has an 8.7:1 compression using our high torque street 74cc cylinder heads and uses a stage II 5.565” connecting rod. We also install a custom torque camshaft for much better efficiency and we only use heavy duty engine parts for maximum reliability. This 400 engine is a great choice for the person who requires more power and torque in their small block engine.

** All Dyno trend estimations are designed to give an average horsepower and torque platform using known performance characteristics of our recommended engine management components.  They are configured using a 650cfm carburetor, level one performance camshaft, an aluminum street performance intake, and 1 5/8" headers. 

Chevy Long Block Upgrades

** Our upgrades include the adjusted cost of all upgrade components, component assembly, related parts required for proper installation, all necessary extra machining procedures, and complete professional assembly.

UP-3750-INT-CRK $255

Internally Balanced Crankshaft

Our internally balanced 3.750” stroke crankshaft removes the external weight used for balancing to the inside and spreads evenly along the crankshaft. This decreases crank flex and snout deflection which provides a stronger and smoother running engine.

UP-BAL $295

Complete Balanced Assembly

Our competition balanced assembly provides a much smoother running engine, better throttle response and fuel economy. We equalize the weight of all rotating and reciprocating components, build the appropriate bob weights, and precision spin balance the crankshaft through the 8000RPM range. This insures less dynamic friction and more power and torque. Because any small imbalance multiplies with RPM, balancing can correct (In some cases) hundreds of pounds of effective imbalance which keeps the engine from fighting itself and relieves un-wanted stress on critical engine components.

UP-EXT-BAL-KIT-S $295

Needed for externally balanced engines.

These hand-picked quality components far exceed reliability requirements to provide a solid and reliable engine.

UP-INT-BAL-KIT-S $295

Needed for internally balanced engines.

These high quality components work to provide much less crankshaft harmonics than the factory counterparts and are much stronger to provide needed reliability.

UP-OP-KIT $145

Our blueprinted quality oil pumps provide proper oil pressure and volume required for engine lubrication. We also provide, properly install, and align the required oil pump pick up tube. For reliability, we use a new engineered steel shaft guide and heat treated oil pump drive.

UP-RV-CAM $145

This is not your grandpa’s RV camshaft design! Our custom designed cam upgrade 20-30 ft lbs of torque and add 10-15HP in the mid RPM ranges, making this a option a great value for the dollar.

UP-FUEL-CAM $145

Our custom fuel saver camshaft can increase fuel economy 2-5 MPG when compared to factory designs. This is done by using the correct valve timing and duration for the engine so less throttle needs to be used, providing better fuel efficiency.

UP-RLR-TIME $85

This true roller upgrade provides greater reliability and more accurate camshaft timing throughout the complete RPM range. Better power and quicker response is the noticeable outcome of this upgrade.

UP-COMP-S $799

We professionally hand assemble the painted front cover and oil pan, seal and torque into place. We provide all quality seals, gaskets, and bolts. Chrome valve covers are installed and torqued. We hand pick the aluminum intake design to enhance engine performance, mill the intake for alignment and maximum seal, then install, seal, and torque to proper specifications. We use our experience and expertise in engine building to insure correct parts installation and positive engine seal.

UP-CRATE-S $1999

We professionally hand assemble the painted front cover and oil pan, seal and torque into place. We provide all quality seals, gaskets, and bolts. Chrome valve covers are installed and torqued. We hand pick the aluminum intake design to enhance engine performance, mill the intake for alignment and maximum seal, then install, seal, and torque to proper specifications. We use our experience and expertise in engine building to insure correct parts installation and positive engine seal.

We then calculate needed carb CFM and timing curve for the engine requirements. We properly curve the distributor then correctly install and seal it. We install the high volume water pump, and a correctly calibrated Quick Fuel carb. A new distributor hold down and thermostat housing is installed. Custom NGK spark plugs recommended by NGK engineers specifically for your engine are installed along with plug wires.

We eliminate the possibility of using the wrong components so the engine will have all “The Right Stuff” to provide the desired results. Just bolting on parts isn’t good enough and because there are so many options available, choosing the correct and calibrated control components is essential for proper engine performance and reliability.

UP-EFI-HOLLEY
Holley Sniper Self Tuning EFI  $1295

This Holley Sniper EFI System will support up to 650HP. It features a simple 4 wire vehicle connection, throttle body mounted ECU, integrated ignition timing control, integrated fuel pressure regulator, wideband O2 sensor, and a color touchscreen. This kit includes a Holley EFI in-line fuel pump, fuel line, all filters and hardware needed to install. Answer a few questions on the calibration wizard and it quickly builds it’s on fuel maps for stress free tuning. It learns as you drive.

UP-EFI-FAST 1.0 

FAST EZ EFI 1.0 Self-Tune  $1495

This FAST EZ EFI will support up to 550HP and will self-tune to your driving style. With easy installation, no tuning experience is required. Included is everything needed from the throttle body ECU, all sensors and wires. Complete harness is provided, perfectly labeled for easy installation and set-up. An in-line fuel pump and fuel line is also included with this package. The ECU features on board diagnostics to monitor all systems. Just answer a few questions with the hand held display and away you go!

UP-EFI-FAST 2.0 

FAST EZ EFI 2.0 Self-Tune  $2595

This FAST 2.0 system can run E98, E85, and E15 fuels as other systems cannot. Capable of fueling engines up to 1200HP because of the higher flowing throttle body and injectors. An advanced color touch screen hand held controller will guide you through set-up and fine tune adjustments. This self-tuning system includes everything from the carb look throttle body, fuel pump, wire harness, O2 sensors, and everything necessary to fuel inject your higher horsepower hot rod.

UP-EFI-ATOMIC 

MSD Atomic Self-Tune System  $1695

This MSD Atomic system features a 1000CFM throttle body with four 80lb injectors. Able to support up to 525HP, this self-calibrating system is a great choice for drivable high torque engines. All sensors are throttle body integrated except for the O2 sensor to offer a clean look. Fuel and timing curves are both self-learning. Comes with hand controller, wire harness, fuel pump, and everything needed. Can be used as returnless or return fuel system. This system is also capable of data acquisition.

UP-DYNO $1599

Getting the most out of your engine not only requires putting together the right components, but also making sure that all the components are working together properly. On our in-house dyno we get real time data and have the ability to correctly tune together all the components to not only get great reliability but also great power and torque. The first 30-45 minutes of running time is the most critical time for proper component parts break in. If the tune, fuel mixture, or timing curve is not correct engine or parts damage can occur. We monitor all of these things in real time so your engine is not only primed and prepped correctly but it’s also broken in properly.

We individually calibrate all components to work together for the best reliability and to get the most out of your engine. Proper engine priming, confirming oil pressure and flow, appropriate fuel pressure, timing, tune, and correct break in procedures are required. All of this is included in our dyno package.