Chevy LS7 Engine Specs · Help Center - Summit Racing
网页The LS7 is the largest engine in the LS family. It is unique because it was based on the C5-R Le Mans Corvette racing engine. It was purpose-built for high-performance. The LS7 was available in performance cars between 2006-15. Top End Features. Unique high-flow, CNC-ported, square port, cylinder heads and intake manifold; Titanium intake valves
Upgrading the LS7 Engine · Help Center - Summit Racing
网页Changing the top end parts is the next level of upgrading the engine. This includes the heads, cam, valvetrain, intake, and throttle body. These upgrades are great for a naturally aspirated engine running pump gas. The LS7 intake manifold and throttle body work great on a stock engine. However, if you want more power, you need to feed the ...
I know my VIN. Which LS engine do I have? · Help Center
网页Which LS engine do I have? Chevrolet's 3rd and 4th generation small block engines are generally known by their RPO code. You can determine the RPO code if you have the Vehicle Identification Number (VIN) from the original vehicle. Locate the 8th digit of the VIN. Consult the tables below to identify your engine.
I don't know the VIN. Which LS engine do I have? · Help Center
网页The easiest way to tell the difference is to check the 8th digit of the VIN code on the original vehicle. Follow this link to Identify an LS Engine by VIN. If you don't have the VIN, you can still identify the engine. Below you'll find pictures and descriptions to help you spot the important differences followed by an identification chart ...
How do I delete the VVT on my LS engine? · Help Center - Summit …
网页Views: This article applies to any Gen. 4, Chevy LS engine with the Variable Valve Timing (VVT) System. A VVT Delete Kit removes the VVT components and replaces them with standard parts. At a minimum, they include: A Gen. 4, non-VVT timing cover, A new, 4X, non-VVT upper timing gear, A new harmonic balancer bolt, and. New camshaft bolts.
How do I install my LS cylinder heads? · Help Center - Summit …
网页Make sure “front” or “this side up” is facing the appropriate direction. Clean the deck surface of the head with a clean rag and acetone (or a similar cleaner). Gently set the cylinder head on top of the head gasket. Be sure it sits properly on the dowels. Take care not to nick or scratch the deck surface of the head.
Gen. 3, Iron Block Torque Specs · Help Center - Summit Racing
网页85 degrees. Cylinder Head Bolts. M11 x 2.0 x 155.5. 22 ft.-lbs. 90 degrees. 90 degrees. M11 x 2.0 x 101.0. 50 degrees. M8 x 1.25 x 46.0.
What's the bore and stroke for an LS engine? · Help Center
网页For all Gen. 3 and 4 Chevy small block engines with the same Displacement, the Bore Diameter and Stroke Length are the same.
What is rocker arm ratio? · Help Center - Summit Racing
网页What is rocker arm ratio? The rocker arm ratio is the relationship between the 2 halves of the rocker arm. The halves are: The center of the valve stem to the center of the pivot point. (Dimension “Y” in the diagram.) The center of the pushrod to the center of the pivot point. (Dimension “X” in the diagram.)
What size injectors do I need? · Help Center - Summit Racing
网页An injector this size can also provide an accurate amount of fuel at low rpm. To calculate your required flow rate, use this formula: (Horsepower X BSFC) ÷ (number of injectors X injector duty cycle) For example, a naturally aspirated, 300 hp engine (BSFC 0.5), with 8 injectors will need 23.4 lbs./hr. of fuel per injector at an 80% (0.8) duty ...