en-us Sat, 25 Apr 2026 14:26:41 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 184782951 https://motorheadmedia.com/bbc-complete/184782951/1963-chevy-409.html 1963 Chevy 409 stroked to a 488. Professionally built. Lamar Walden rotating assembly. This was build for my 1962 bel air bubble top but I’ve decided to sell both at this point. I’m selling the car separately if interested. The engine has been dynoed and makes over 600hp. 40k into the 409. If interested I can give more detail. Email or call. 206-245-7505.

]]> Engines: GM/Chevrolet: 8 Cylinder: BBC Complete Wed, 22 Apr 2026 22:35:01 GMT 184717543 https://motorheadmedia.com/bbc-complete/184717543/advanced-sleeve-engine-sleeves.html Advanced Sleeve is a leading producer of premium-quality, American Made sleeves for any automotive application. We are actively involved with the racing industry’s top Domestic and Import Drag Racing, Road Racing and Competition Pulling Engine Builders. Advanced Sleeve will build your own custom-made sleeve from high-grade ductile iron, gray cast iron or plateable forged aluminum. Restoration, all-out racing or repair and replacement sleeves, Advanced Sleeve manufactures automotive solutions.…

]]> Engines: GM/Chevrolet: 8 Cylinder: BBC Complete Wed, 22 Apr 2026 07:50:03 GMT 184717542 https://motorheadmedia.com/ls-lt-complete/184717542/advanced-sleeve-engine-sleeves.html Advanced Sleeve is a leading producer of premium-quality, American Made sleeves for any automotive application. We are actively involved with the racing industry’s top Domestic and Import Drag Racing, Road Racing and Competition Pulling Engine Builders. Advanced Sleeve will build your own custom-made sleeve from high-grade ductile iron, gray cast iron or plateable forged aluminum. Restoration, all-out racing or repair and replacement sleeves, Advanced Sleeve manufactures automotive solutions.…

]]> Engines: GM/Chevrolet: 8 Cylinder: LS & LT Complete Wed, 22 Apr 2026 07:50:03 GMT 184771296 https://motorheadmedia.com/long-block/184771296/dart-shp-ls-next-iron-long-block-copper-head-gaskets.html Our 427ci mechanical-roller LS iron long blocks come in two primary flavors: conventional and copper head gaskets. The Cometic MLX gaskets we use have a max boost rating of 35 psi. This long block has copper head gaskets with fuel hoops which can hold more boost and generate more horsepower. This iron LS long block also has numerous parts upgrades relative to its sister with conventional head gaskets. These include: - Upgrade from Callies Apex to Callies Magnum crank - Switch from Callies Ultra…

]]> Engines: GM/Chevrolet: 8 Cylinder: Long Block Wed, 22 Apr 2026 07:50:02 GMT 184782753 https://motorheadmedia.com/short-block/184782753/1969-chevy-427-big-block-verified-427-.030-over-l72-style.html Offered is a documented 1969 Chevrolet Mark IV Big Block 427 engine featuring verified 4.00" stroke, .030 overbore (~433 CID), and high-compression domed pistons consistent with L72 performance builds. This is NOT an unknown core — displacement has been mechanically verified and internal components inspected and photographed. This came down from wife's grandfather who was an amateur race car machinist and mechanic for 70 years. Due to a passing away in family, we are being forced to sell it…

]]> Engines: GM/Chevrolet: 8 Cylinder: Short Block Tue, 21 Apr 2026 04:40:38 GMT 184781548 https://motorheadmedia.com/long-block/184781548/chev-sb-aluminum-engine-block-new-rotate-assy-available.html >> FOR SALE----"NEW".. "ALUMINUM" SB CHEV "BARE" Engine BLOCK ..NEW from Pro-Comp ..Had originally bought 3 of these and used 2 in Previous Builds, but now going to concentrate on BB Chev Engines. This NEW block is based on 9.025 Deck Height, Accepts 2 Piece Rear Main Seal, has rough bore size of 4.120" (4.125) and Features 4 BOLT MAIN CAPS "BILLET STEEL" on ALL 5 Positions with a MAIN STUDS INSTALLED the Mains accept the more Popular 350 Main…

]]> Engines: GM/Chevrolet: 8 Cylinder: Long Block Mon, 20 Apr 2026 07:50:03 GMT 184781547 https://motorheadmedia.com/short-block/184781547/chev-sb-aluminum-engine-block-new-rotate-assy-available.html >> FOR SALE----"NEW".. "ALUMINUM" SB CHEV "BARE" Engine BLOCK ..NEW from Pro-Comp ..Had originally bought 3 of these and used 2 in Previous Builds, but now going to concentrate on BB Chev Engines. This NEW block is based on 9.025 Deck Height, Accepts 2 Piece Rear Main Seal, has rough bore size of 4.120" (4.125) and Features 4 BOLT MAIN CAPS "BILLET STEEL" on ALL 5 Positions with a MAIN STUDS INSTALLED the Mains accept the more Popular 350 Main…

]]> Engines: GM/Chevrolet: 8 Cylinder: Short Block Mon, 20 Apr 2026 07:50:03 GMT 184477246 https://motorheadmedia.com/bbc-complete/184477246/pat-musi-built-433.-only-run-on-dyno-.html Brand new only run on dyno. 433 Pat Musi built motor with Kooks step headers; Jessel Rockers belt; Brodax heads; intake; Dark Block; makes 750 hp. NO runs! Call owner Tommy and day after 732 993 5925.

]]> Engines: GM/Chevrolet: 8 Cylinder: BBC Complete Sat, 18 Apr 2026 07:45:10 GMT 184738379 https://motorheadmedia.com/short-block/184738379/dart-big-m-572.html All new parts to build. 572 short block Callie’s forged steel crank Completely machined, clearances. Balanced, etc. 10 Wiseco pistons, approximately 12.5 compression depending on heads. Two spare pistons BME aluminum rods All new new new a steal at last drop in price $6900

]]> Engines: GM/Chevrolet: 8 Cylinder: Short Block Fri, 17 Apr 2026 07:50:03 GMT 184738373 https://motorheadmedia.com/short-block/184738373/new-rebuilt-383-chevy-stroker-short-block.html Fresh 383 stroker short block built years ago but never used. Forged crank and h beam rods..forged Ross racing pistons XL-400. Compression ratio about 11-12.5 depending on head cc. 4 bolt block decked , line honed,and bored professionaly. Assembly also balanced . Engine half hard blocked to under freeze plugs for rigidity, totally acceptable for street use. $3900.

]]> Engines: GM/Chevrolet: 8 Cylinder: Short Block Fri, 17 Apr 2026 07:50:03 GMT