This engine was built for my 1978 Malibu which is a street/strip car. In 2019 I won the NMCA Street King World Championship with it. The car ran a best of 10.33 weighing 3450LBS. With that you can calculate that it is probably making around 619HP at the rear wheels based on ET/weight ¼ mile formula. Using 20% it equates to about 743HP at the crank. This is running through the mufflers on 93 octane pump gas. No racing fuel is required. It was never on a dyno. Tuning was done driving and with data recording at the track (real world). Engine has about 5000 miles on it.
Engine is an OEM LS7 aluminum 7.0L (427 cubic inches) block with aluminum LS7 heads. Forged crank, OEM LS7 titanium connecting rods and Diamond Forged pistons. Heads have been ported and polished. Cam and springs are from Comp Cams Hydraulic (lift is intake - .661, exhaust - .652 @1.8 rocker ratio duration is intake – 243, exhaust - 254 @.050, lobe separation is 115). Rocker arms have the trunnion upgrade modification kit from Comp Cams. Engine is completely blueprinted and balanced. Intake manifold is 105mm LSX-R from FAST 105MM throttle body. Ignition has the GOOD OEM truck coils with the cooling fins. The original MS3 PRO (Mega Squirt) computer with the tune which was in the car running with this engine is included. Additionally, I am including a BRAND-NEW wiring harness for this computer. Starter, truck oil pan (fits G body’s), SFI approved balancer, Taylor 10.4MM plug wires, Lokar black braided dipstick, Aeromotive Fuel Pressure regulator with gauge, SFI approved flexplate, alternator, GZ motorsports vacuum pump and all respective pulleys and belts are included. This engine always ran naturally aspirated and power adders have never been used, even though it can easily take a 200 shot of nitrous for which the included computer can be program to manage.
The reason for selling is that, wanting to go faster the car now has an LSX turbo engine. This is a great engine and I hate to see it go; I just do not have the space. This engine is a proven winner at the track and on the street. Drop it in and go have some fun. $19500.00 for the complete package. You cannot duplicate all this for the price. NO shipping is included. No tire kickers. Not negotiable. Cash sale.