23/03/35 · Still wrapped in plastic 454’s been in my shop over 30 years. 1. engine number 1 is a new 454 LS6 450 hp. 11 to 1 compression closed chamber motor casting366250. it has intake installed,flywheel, and harmonic balancer. 2. engine number 2 is a 454 LS7 465 hp. 12 1/2 to one open chamber motor. includes harmionic balancer and flywheel. 22/02/33 · This is a video of my fathers & my 1966 Chevy Chevelle convertible M-22 4-speed with a rare NOS LS7 iron block 454. Started for the first time on January 12, 2012. This is the 3rd time starting.
Have one! 1970 stingray with 454 LS7 engine!! Convertible! Reply 1.1k Show reply. ProDriveP2 5y ago. Not to rain on anyone's parade but the the LS7 was an available option that was never produced because no one ordered it. The LS6 was the only one produced. Reply 1k Show 3 replies. 19/05/41 · Although the LS7 454 never made its way into any cars sold to the public, it was sold as a crate engine available through Chevrolet and claimed to produce around 500 horsepower. The 1970 production models of the 454 put out the most horsepower with the LS5 claiming 360 horsepower and the LS6 putting out a mighty 450 horsepower. The LS6 was a high-performance 454 option. The LS7 never saw production for standard Chevys, but was a crate, or replacement engine, for custom Chevys and tuned to deliver as much as 500 horsepower. The LS7 was still available in 2011. The detuned LS4 454 powered the 1973 and 1974 Monte Carlos, Chevelles and Corvettes. The TSP 454 CID 700 HP LSx Turn-Key Package will have an aggressive idle and will require a minimum 2,800 RPM stall speed torque converter. This package will include the following items: GMPP LSx Iron Engine Block; Texas Speed & Performance Forged 4340 4.125" Stroke Crankshaft; Texas Speed & Performance Forged 6.125" Connecting Rods.
As mentioned, the Chevy 454 first became available as part of the 2nd generation of Chevy big block engines in 1970. The engine originally had 3 variants, although only 2 of those were offered in normal production. The 3 engines were the LS5, LS6, and LS7 – with the LS7. 25/11/33 · We used Fel-Pro gaskets throughout the build. The first one that we used was the oil pan gasket. Fel-Pro makes kits for many popular engines, including our 454 LS-7X engine that used the LS7 kit. The finishing touch for our short block was the damper. ATI‘s Super Damper was chosen for several reasons. It was chosen not only because it would. The LS7 uses a unique cylinder block casting with pressed-in steel cylinder liners to accommodate the engine’s large, 4.125-inch cylinder bores – with deck-plate.
22/08/39 · Brutal Legend: The LSx 454 – Part Number 19244611. In fact, lets take a second to chat about the LSx 454 engine block, which is the first 100% aftermarket crate engine offering from Chevy Performance. General Motors built an automotive empire out of the idea of sharing parts and platforms across multiple lines of vehicles. 27/10/29 · Does anyone have the factory hp and Torque ratings for the LS7 454 crate engine.Also if anyone knows the Cam specs I would appeciate it.thanks 1970. 05/02/28 · LS7 454 Power Thanks for the info, the person that sold me the engine said with my setup i should be around 575honest HP, but this thing realy pulls when you drop back into 4th on the highway, and with 115 oct. race fuel it's hard to control Have to learn to Drive all over again Thanks. 23/06/32 · Build a 700hp 454 LS stroker that's tame enough for your daily driver. - Super Chevy Magazine. Rather than the high-zoot LS7 or only slightly less zooty LS3 heads, Brian chose a.
LS7 can also refer to a 454 over the counter 460 hp high compression engine Chevrolet Big-Block engine of the 1970s The LS7 is a 7,011 cc 7.0 L; 427.8 cu in engine, based on the Gen IV architecture. In the history of high-performance engines, the Corvette Z06's LS7 will be remembered as a benchmark in naturally aspirated power. It will also go down as one of the most popular LS crate engines ever offered, with 505 horsepower and 470 lb-ft of torque. 21/09/40 · Looking for opinions on which to go with LS7 or LSX 454 in a rear engine sandcar. My biggest question is if the weight of the cast iron LSX is very noticeable compared to an aluminum LS. I know it is about 126 pounds heavier, just wondering if I should stick with aluminum or if the 454 is really. The muscle car wars were in full swing when Chevrolet launched the 454 V-8 in 1970. It powered the Camaro, Chevelle, El Camino and Corvette. There were multiple versions that included the LS7 aftermarket crate engine that wielded 500 horsepower.
21/06/36 · Mark Lindquist offers his tip of the month and answers a readers' question about matching numbers for a 454 big-block engine. sold over the counter by dealers and is commonly known as the LS7. 19/01/27 · The LS7 454 is a "Mythical Engine", "This option was listed in the Corvette shop specs, but only one was "officially" made.", "LS7 454 almost won the big dog prize with its 460 hp rating, but the engine was never available". 20/03/27 · While at a friends house i discovered he has a real LS7 454 that he bought brand new years ago.He took the original iron heads off and put gm racing alluminum heads on. He was planning on drag racing the motor but never did.This motor is 12-1 compression.And has been sitting in a garage for a long time but has never been run. 20/09/38 · Saw your post regarding the 454 LS7 engine, luckily it is not completely true! Not trying to be mean but I have a 1970 Corvette Stingray with the 454 LS7 engine, matching numbers. I would like to find additional info and paperwork for the car. I was lucky enough to have a Dad who kept a great portion of the papers for this car.
The LS7 454 cui Bigblock in this black beauty is concidered to be the best Cheverolet produced in the early 70's and it was to powerfull to ever made into factory production cars. The engine was developped to follow up the monster LS6 engine, and to beat all other Musclecar engines of the day like the 426 Hemi and Fords Super Cobra Jet engines. 24/04/32 · This reply is many years late but for anyone interested I also purchased an ls7 454 crate engine in 1982 for $1800.00 from a Chevy dealer in Decatur Ga. We called them 7's. Also to note, this engine had the ZL1 oil pump with 5/8" pickup tube braised on and no paint on this engine. Mine had no intake manifold either. Had corvette oil pan.
04/03/41 · 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. 28/06/41 · Chevrolet Performance offers Cylinder Heads for LSX Series engine blocks, and other components for your engine build or project car. 1970 LS7 454 Chevy Big Block Engine FOR SALE I've got an original 1970 LS7 454 Chevy Big Block Complete with Cam, roller rockers, pan, HV pump, timing and pan tin, etc. CRATE MOTOR PURCHASED in 1986. PRICE $5,000. The motor is a 12.5:1 compression. Presently it's fitted with a large roller cam and lifters.
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