en-us Sat, 25 Apr 2026 11:04:21 GMT 184772257 https://motorheadmedia.com/sbc-complete/184772257/smokey-yunicks-355-usac-stock-block-engine.html This is the famous engine that Smokey Yunicks built in the late 70s to prove to USAC that a stock block engine could keep up with the exotics and live…full article can be found online published may1980 republished 2023..355 cid early Brodix heads ported by Diamond ..custom Smokey Hilborn injection on modified corvette manifold etc etc..was in private collection for 40 plus years never taken apart other than rocker cover taken off to inspect. Turns over perfect bore scope of cylinders…

]]> Engines: GM/Chevrolet: 8 Cylinder: SBC Complete Fri, 24 Apr 2026 07:50:04 GMT 184711340 https://motorheadmedia.com/long-block/184711340/boost-ready-370ci-ls-long-block-brodix-ls1-cnc-d-heads.html Looking for some serious power at a great price? Look no further! This 370ci boost-ready, cathedral port long block is designed to easily handle more than 1,000 hp. We are now offering this long block with high flowing, 13.5-degree valve angle, Brodix cathedral port, 6-bolt heads. Our process for machining these heads includes CNC porting and combustion chamber machining on our 5-axis with CNC valve job and bowl blend on our Newen CNC seat & guide machine (see Engine Machining playlist on…

]]> Engines: GM/Chevrolet: 8 Cylinder: Long Block Fri, 24 Apr 2026 07:50:04 GMT 184710007 https://motorheadmedia.com/short-block/184710007/lt-short-blocks-gm-iron-or-aluminum-block-callies-diamond.html Note: Price shown is for the LT4 short block. Click BUY NOW to get over to our website for L8T pricing and more details. GM's LT iron (L8T) and aluminum (LT4) blocks have proven to be strong performers. We have found these blocks able to reliably handle far more power than their LS predecessors. These short blocks benefit from our state-of-the-art CNC machining which provides a level of precision far beyond OE. All blocks are individually serialized on our 4-axis CNC for traceability. We…

]]> Engines: GM/Chevrolet: Short Block Fri, 24 Apr 2026 07:50:04 GMT 184654537 https://motorheadmedia.com/bbc-complete/184654537/540-kb-olds-dart-big-chief-wedge-engine.html Engine #2 (The engine on rolling engine stand in pics) INTAKE MANIFOLD TO PAN PRICE FOR #2 IS $25,000.00 540 ci KB-OLDS Wedge BBC 11.2 Tall deck Dart Big Chief aluminum heads Set back intake manifold 4.250 Callies Billet crank (less than 7 runs from new) 4.510 Diamond coated Aluminum pistons (less than 7 runs from new) GRP 7.100" Billet aluminum rods (less than 7 runs from new) T &D Roller rockers Out board crank support Crane Camshaft Triton girator oil pump New Enderle billet fuel pump 15.7…

]]> Engines: GM/Chevrolet: BBC complete Fri, 24 Apr 2026 07:50:04 GMT 184630056 https://motorheadmedia.com/long-block/184630056/370ci-ls3-port-iron-long-block-630hp.html This digitally remastered 370 cubic inch LS long block delivers a lot of bang for the buck. Our CNCs have machined these seasoned GM block, crank and heads to far beyond their original condition. Pairing these parts with superior quality aftermarket components allows us to pull out 630 horsepower on pump gas at a budget friendly price. The 6.0L iron GM blocks are bored and decked on our 4-axis which boasts a precision of 0.0002" and 1/1,000th of a degree. We also engrave and serialize the blocks…

]]> Engines: GM/Chevrolet: Long Block Fri, 24 Apr 2026 07:50:04 GMT 184501305 https://motorheadmedia.com/bbc-complete/184501305/1-450-hp-f2-procharged-555ci-big-block-chevy-engine.html ProCharger had their new Big Block serpentine system on display at SEMA 2023 and it was a beauty. The integrated design provides a better look, simplified installation and easy customization. ProCharger introduced a sister product for LS engines at PRI 2022 that we scooped up on the spot. The 370ci LS we subsequently built pushed out 1,063 hp with its smaller D1-X supercharger. We followed that up recently with an F1-X 427ci LS that pushed out 1,250 hp on pump gas with water-meth spray and…

]]> Engines: GM/Chevrolet: BBC complete Fri, 24 Apr 2026 07:50:04 GMT 184160518 https://motorheadmedia.com/short-block/184160518/ls-next2-427-cubic-inch-shortblock-for-big-boost.html This is the last stop before going to a billet block. In fact, that's exactly the path that the owner of the car in the video took. He rang up 2,740 horsepower to the wheels with this combination. He then moved up to one of our billet block builds and bigger turbos for even more power. Before getting too much deeper here, you should click the BUY NOW link to get over to our website. We have lots more info posted there as we are not constrained by format. Still reading? Okay. Parts Lists -…

]]> Engines: GM/Chevrolet: Short Block Fri, 24 Apr 2026 07:50:04 GMT 184156919 https://motorheadmedia.com/ls-lt-complete/184156919/800-hp-427-ci-naturally-aspirated-hydraulic-roller-ls.html "The simplest solution is usually the best one" is not a new idea, but it is a good one. If you can get the power you want out of your engine naturally aspirated, that's probably the way to go. The OEs need superchargers to get into the 700 hp territory. We don't. This pump gas LS engine puts out 800 hp all on its own. This build features a Dart LS Next SHP iron block with a 4.125 inch bore. The rotating assembly uses a Callies Compstar center counter-weighted crank with a…

]]> Engines: GM/Chevrolet: LS & LT complete Fri, 24 Apr 2026 07:50:04 GMT 184153422 https://motorheadmedia.com/ls-lt-complete/184153422/3-000-hp-427ci-twin-83mm-turbo-ls-fueltech-600-ems.html This is a custom engine intended to run on methanol and over-built to take a pounding. Since it is a custom build, you have a lot of available options to best suit your needs. For example, the pricing indicated here includes a tricked-out FuelTech engine management system. Prefer Holley or Emtron? Want a different intake manifold? Aluminum rods? No problem. Actual pricing will of course depend upon options selected, so the final appearance may vary from that seen in the photos. The primary…

]]> Engines: GM/Chevrolet: LS & LT complete Fri, 24 Apr 2026 07:50:04 GMT 184145988 https://motorheadmedia.com/short-block/184145988/408-ci-ls-short-block-for-na-street-.html This short block is intended to be used in a naturally aspirated build. Its design is very similar to our 370 cubic inch, boost-ready LS short block. This NA version has a stroker crank for more displacement, flat top pistons for a little bit more compression and a slightly different hone finish on the cylinder walls. Going to a 4.000" stroke with a 4.030" bore diameter brings us to 408 cubic inches. Our standard recipe NA engine builds with this short block typically fall into the 675 - 750…

]]> Engines: GM/Chevrolet: Short Block Fri, 24 Apr 2026 07:50:04 GMT 184127686 https://motorheadmedia.com/long-block/184127686/boost-ready-370ci-ls-long-block-afr-ls3-cnc-d-heads.html Looking for some serious power at a great price? Look no further! This 370ci boost-ready LS long block is designed to easily handle more than 1,000 hp. The AFR, LS3, 6-bolt, 12-degree valve angle castings provide great airflow and were built to handle boost. Our process for machining these heads includes CNC porting and combustion chamber machining on our 5-axis with CNC valve job and bowl bowl blend on our Newen CNC seat & guide machine (see Engine Machining playlist on our YouTube channel…

]]> Engines: GM/Chevrolet: Long Block Fri, 24 Apr 2026 07:50:04 GMT 184006059 https://motorheadmedia.com/bbc-complete/184006059/new-632-street-engine-hyd-roller-pump-gas-.html best street engine around. consist of merlin IV block, 4340 callies 4.750 crank, callies h-beam rods w/bolt upgrade, wiseco pistons (10.6 to 1), hp bearings, brass freeze plugs, melling hv oil pump, moroso stroker oil pan, arp oil pump stud and shaft, powerbond dampner, sfi flexplate w/arp bolts, brodix ds365 alum heads, head stud kit, all fel pro gaskets, comp hyd roller cam, hyd roller lifter set, double roller timing set, billet timing pointer, .080 trend pushrods, gold alum roller rockers,…

]]> Engines: GM/Chevrolet: BBC complete Fri, 24 Apr 2026 07:50:04 GMT