Tag: LS

PROJECT LS2

The entire project series…Parts 1 through 6…are now available on this site. Plan to duplicate our 625.4 HP LS motor for a customer? This series provides every part source and part number, along with step by step prep and assembly details.

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PROJECT LS2: Final Prep and Dyno (Part 2)

PROJECT LS2: Final Prep and Dyno (Part 2)

The COMP Cams billet aluminum belt tensioner is adjustable for belt tension and offers rock-solid serpentine belt guidance.

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PROJECT LS2: Final Prep and Dyno (Part 1)

PROJECT LS2: Final Prep and Dyno (Part 1)

Whenever I build an engine, regardless of my confidence in terms of fitting and assembly detail, I’m always a bit apprehensive when it comes time to light the fire. But when things go picture-perfect and you hit high numbers without a single glitch, it’s a feeling that’s better than sex (I’m sure you know what I mean). This LS program proved to be a total success.

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PROJECT LS2, PART 5 (E)

PROJECT LS2, PART 5 (E)

Our injectors are from Bosch (P/N 0280 156 127). These are the taller LS1 style at about 2.917″ tall. An intake manifold that is designed for LS2 injectors features a larger diameter injector port as compared to an LS1 manifold, so if you plan to run LS1 style injectors in an LS2 manifold, you’ll need [...]

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PROJECT LS2, PART 5 (D)

PROJECT LS2, PART 5 (D)

Here’s our LS with our carburetor setup and coilpacks. This setup will utilize the MSD timing controller for ignition control/adjustment. No ECU is required for this approach, which makes it ideal for application in any street rod, muscle car, race car, etc. that is not wired for computer control. For our coilpack versions (for either [...]

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PROJECT LS2, PART 5 (C)

PROJECT LS2, PART 5 (C)

Our coilpacks (to be used either with an EFI or distributorless carburetor setups) are MSD No. 8245 coils. Eight coils are used, with one coil dedicated to each spark plug. The MSD coils deliver up to three times the spark energy of the stock coils, as well as delivering multiple sparks. Maximum voltage is 44,000 [...]

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PROJECT LS2, PART 5 (B)

CARB WITH DISTRIBUTOR, NO COILPACKS The next carb-type setup involves the same intake manifold and carburetor, but with a twist-get rid of the eight individual coilpacks and mount a distributor at the front of the engine. GM Performance offers a distributor adapter kit (P/N 88958679) that includes a cast aluminum LS front distributor drive cover [...]

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PROJECT LS2, PART 5 (A)

PROJECT LS2, PART 5 (A)

PROJECT LS2, PART 5 INDUCTION AND IGNITION by Mike Mavrigian all photos by author Our LS2, ready for induction. You face a few choices with regard to fuel, air and ignition when building an LS-you can stick with the OE fuel injection (how boring is that?), you can install an aftermarket performance fuel injection system [...]

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PROJECT LS2, PART 4 (E)

PROJECT LS2, PART 4 (E)

The Victor water pump mounting gaskets are alloy bases with elastomeric seals. These appear to be very re-useable. Our Edelbrock water pump mounted to the block. Fit and hole alignment were superb. Here’s the upper left timing cover bolt that we mentioned. It’s close, but it does clear the pump body. The Edelbrock water pump [...]

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PROJECT LS2, PART 4 (D)

PROJECT LS2, PART 4 (D)

The camshaft was checked with a degree wheel. Crane did one heck of a nice job grinding this bumpstick. Lift and timing moments were dead-on to the cam card. With our crank snout pinned for the damper, the timing cover was installed using ARP’s front cover kit (12-point stainless). The front coolant balance tube assembly [...]

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