{"title":"GM 348-409","description":null,"products":[{"product_id":"ar234-6403","title":"ARP fasteners Conrod Bolt Set AR234-6403","description":"\u003cb\u003eConrod Bolt Set\u003c\/b\u003e\u003cb\u003efits SB Chev 305-307-327-350 L\/J 3\/8\" Wave-Loc ARP2000\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eBrand: \u003c\/b\u003e\u003cspan\u003eARP\u003c\/span\u003e\u003cbr\u003e\u003cb\u003ePart Number: \u003c\/b\u003e\u003cspan\u003eAR234-6403\u003c\/span\u003e\u003cbr\u003e\u003cb\u003eDescription: \u003c\/b\u003e\u003cdiv class=\"value description\"\u003e \u003cp\u003eBecause factory connecting rods (or aftermarket versions of OEM rods) are used in a variety of applications from rebuilt stock motors to modified powerplants used in circle track, marine and drag racing engines - including those with superchargers and\/or nitrous oxide injection systems - ARP offers replacement rod bolts in three different models. All of them are substantially better than the stock OEM and most aftermarket bolts.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"ARP Fasteners","offers":[{"title":"fits SB Chev 305-307-327-350 L\/J 3\/8\" Wave-Loc ARP2000","offer_id":42024341242027,"sku":"AR234-6403","price":424.43,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0520\/9319\/0315\/products\/arp-fits-sb-chev-305-307-327-350-l-j-3-8-wave-loc-arp2000-arp-fasteners-conrod-bolt-set-ar234-6403-srcopyright-1159771326.jpg?v=1749651248"},{"product_id":"ar134-6403","title":"ARP fasteners Conrod Bolt Set AR134-6403","description":"\u003cb\u003eConrod Bolt Set\u003c\/b\u003e\u003cb\u003efits SB Chev 305-307-327-350 (Large Journal) 3\/8\" \u0026amp; Holden 308 (Wave Loc 8740)\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eBrand: \u003c\/b\u003e\u003cspan\u003eARP\u003c\/span\u003e\u003cbr\u003e\u003cb\u003ePart Number: \u003c\/b\u003e\u003cspan\u003eAR134-6403\u003c\/span\u003e\u003cbr\u003e\u003cb\u003eDescription: \u003c\/b\u003e\u003cdiv class=\"value description\"\u003e Unquestionably The Most Important Fasteners In Any Engine Are The Connecting Rod Bolts, As They Hold The Key To The Entire Rotating Assembly. A Broken Bolt Will Lead To A Catastrophic Engine Failure. As You Can Imagine, The Most Critical Joint Is Where The Connecting Rods Mate. The Rod Bolts Must Support The Primary Tension Loads Caused By Each Rotation (or Cycle) Of The Crankshaft. When The Crank Rotates, The Big End Of The Connecting Rod Essentially Becomes Oval Shaped And The Rod Bolts Bend. As The Crankshaft Continues To Rotate, The Rod Becomes Round Again. With Alternating Tension Loads And Cyclic Bending Of The Bolts, It's Very Important To Install Fasteners That Are Able Exert A Clamping Force Greater Than The Load Imposed On The Joint (tension). In An Addition To Utilizing A Rod Bolt With Sufficient Strength To Withstand The Tremendous Cyclic Strains Placed Upon It, It Is Absolutely Imperative That The Bolts Be Properly Tightened. The Preferred Method Of Monitoring The Correct Amount Of Tension Is Through A Stretch Guage. This Is Far More Accurate Than A Tension Wrench Moreover Through Subsequently Checking The Rod Bolts Length At Teardowns, It Is Possible To Determine If It Has Been Stressed Beyond Safe Limits And Must Be Replaced.\u003c\/div\u003e","brand":"ARP Fasteners","offers":[{"title":"fits SB Chev 305-307-327-350 (Large Journal) 3\/8\" \u0026 Holden 308 (Wave","offer_id":42024359395499,"sku":"AR134-6403","price":218.5,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0520\/9319\/0315\/products\/arp-fits-sb-chev-305-307-327-350-large-journal-3-8-holden-308-wave-arp-fasteners-conrod-bolt-set-ar134-6403-srcopyright-1159770925.jpg?v=1749643923"},{"product_id":"ar134-6003","title":"ARP fasteners Conrod Bolt Set AR134-6003","description":"\u003cb\u003eConrod Bolt Set\u003c\/b\u003e\u003cb\u003efits SB Chev 305-307-327-350 (Large Journal) 3\/8\"\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eBrand: \u003c\/b\u003e\u003cspan\u003eARP\u003c\/span\u003e\u003cbr\u003e\u003cb\u003ePart Number: \u003c\/b\u003e\u003cspan\u003eAR134-6003\u003c\/span\u003e\u003cbr\u003e\u003cb\u003eDescription: \u003c\/b\u003e\u003cdiv class=\"value description\"\u003e Unquestionably The Most Important Fasteners In Any Engine Are The Connecting Rod Bolts, As They Hold The Key To The Entire Rotating Assembly. A Broken Bolt Will Lead To A Catastrophic Engine Failure. As You Can Imagine, The Most Critical Joint Is Where The Connecting Rods Mate. The Rod Bolts Must Support The Primary Tension Loads Caused By Each Rotation (or Cycle) Of The Crankshaft. When The Crank Rotates, The Big End Of The Connecting Rod Essentially Becomes Oval Shaped And The Rod Bolts Bend. As The Crankshaft Continues To Rotate, The Rod Becomes Round Again. With Alternating Tension Loads And Cyclic Bending Of The Bolts, It's Very Important To Install Fasteners That Are Able Exert A Clamping Force Greater Than The Load Imposed On The Joint (tension). In An Addition To Utilizing A Rod Bolt With Sufficient Strength To Withstand The Tremendous Cyclic Strains Placed Upon It, It Is Absolutely Imperative That The Bolts Be Properly Tightened. The Preferred Method Of Monitoring The Correct Amount Of Tension Is Through A Stretch Guage. This Is Far More Accurate Than A Tension Wrench Moreover Through Subsequently Checking The Rod Bolts Length At Teardowns, It Is Possible To Determine If It Has Been Stressed Beyond Safe Limits And Must Be Replaced\u003c\/div\u003e","brand":"ARP Fasteners","offers":[{"title":"fits SB Chev 305-307-327-350 (Large Journal) 3\/8\"","offer_id":42024359493803,"sku":"AR134-6003","price":226.8,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0520\/9319\/0315\/products\/arp-fits-sb-chev-305-307-327-350-large-journal-3-8-arp-fasteners-conrod-bolt-set-ar134-6003-srcopyright-1159770922.jpg?v=1749643814"},{"product_id":"ed4140","title":"Edelbrock Classic Aluminium Series Valve Covers - Polished Finish ED4140","description":"\u003cb\u003eClassic Aluminium Series Valve Covers - Polished Finish\u003c\/b\u003e\u003cb\u003eChevy 348\/409 W-series, 3-13\/16\" overall ht.\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eBrand: \u003c\/b\u003e\u003cspan\u003eEDELBROCK\u003c\/span\u003e\u003cbr\u003e\u003cb\u003ePart Number: \u003c\/b\u003e\u003cspan\u003eED4140\u003c\/span\u003e\u003cbr\u003e\u003cb\u003eDescription: \u003c\/b\u003e\u003cdiv class=\"value description\"\u003e \u003cp\u003eEdelbrock first made these aluminium valve covers in the late '50s and they're still a classic. Made of heavy-gauge sand-cast aluminium, our classic finned valve covers are available in either a classic polished aluminium or durable black powder coated finish. Overall height is measured from base to top at the highest point. Edelbrock classic valve covers can be machined to accept breathers if desired.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Edelbrock","offers":[{"title":"Chevy 348\/409 W-series, 3-13\/16\" overall ht.","offer_id":42692295327915,"sku":"ED4140","price":1664.08,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0520\/9319\/0315\/products\/edelbrock-chevy-348-409-w-series-3-13-16-overall-ht-edelbrock-classic-aluminium-series-valve-covers-polished-finish-ed4140-srcopyright-1159753693.jpg?v=1749316808"},{"product_id":"ed8858","title":"Edelbrock Victor Series Aluminium Water Pump ED8858","description":"\u003cb\u003eVictor Series Aluminium Water Pump\u003c\/b\u003e\u003cb\u003eChevy 348-409, 5\/8\" pilot shaft\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eBrand: \u003c\/b\u003e\u003cspan\u003eEDELBROCK\u003c\/span\u003e\u003cbr\u003e\u003cb\u003ePart Number: \u003c\/b\u003e\u003cspan\u003eED8858\u003c\/span\u003e\u003cbr\u003e\u003cb\u003eDescription: \u003c\/b\u003e\u003cdiv class=\"value description\"\u003e \u003cp\u003eEdelbrock Victor Series water pumps provide maximum cooling for the street and the race track. They're ideal to prevent overheating in street rods and street machines, as well as in tow rigs and motor homes. Using state-of-the art racing technology, Edelbrock has designed these \"super cooling\" water pumps to provide maximum flow, maximum pressure and equal distribution to both sides of the engine block within 1%. Available for most popular applications, these high-performance pumps flow in only one direction for optimum efficiency. The casting's computer-designed internal passages and precision powdered metal impeller produce the maximum flow rate possible. Standard and reverse rotation pumps are available for most Chevrolets, Fords, and Chryslers.\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eFits 1958-65 B\/B Chevy 348\/409 engines. Has 3\/4\" ball\/ball bearing. Dimension from block surface to hub: 5-1\/2\". Inlet l\u0026gt; \u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Edelbrock","offers":[{"title":"Chevy 348-409, 5\/8\" pilot shaft","offer_id":42692305584299,"sku":"ED8858","price":1249.21,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0520\/9319\/0315\/products\/edelbrock-chevy-348-409-5-8-pilot-shaft-edelbrock-victor-series-aluminium-water-pump-ed8858-srcopyright-1159753267.jpg?v=1749308768"},{"product_id":"fefs8007pt-3","title":"Felpro Full Gasket Set FEFS8007PT-3","description":"\u003cb\u003eFull Gasket Set\u003c\/b\u003e\u003cb\u003eSuit BB Chev348 \"W-Head\"\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eBrand: \u003c\/b\u003e\u003cspan\u003eFELPRO\u003c\/span\u003e\u003cbr\u003e\u003cb\u003ePart Number: \u003c\/b\u003e\u003cspan\u003eFEFS8007PT-3\u003c\/span\u003e\u003cbr\u003e\u003cb\u003eDescription: \u003c\/b\u003e\u003cdiv class=\"value description\"\u003e \u003cp\u003eThese full engine gasket kits include all gaskets and seals required for a complete engine rebuild including head gaskets, intake and exhaust manifold gaskets, oil pan gaskets and all engine seals and ancillary gaskets.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Felpro","offers":[{"title":"Suit BB Chev 348 \"W-Head\"","offer_id":42692328423595,"sku":"FEFS8007PT-3","price":394.58,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0520\/9319\/0315\/products\/felpro-suit-bb-chev-348-w-head-felpro-full-gasket-set-fefs8007pt-3-srcopyright-1159752749.jpg?v=1749299288"},{"product_id":"msd8393","title":"MSD Pro-Billet Ready-To-Run Distributor MSD8393","description":"\u003cb\u003ePro-Billet Ready-To-Run Distributor\u003c\/b\u003e\u003cb\u003eChevy 348-409, Magnetic Pickup, Vacuum Advance, High Output Module\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eBrand: \u003c\/b\u003e\u003cspan\u003eMSD\u003c\/span\u003e\u003cbr\u003e\u003cb\u003ePart Number: \u003c\/b\u003e\u003cspan\u003eMSD8393\u003c\/span\u003e\u003cbr\u003e\u003cb\u003eDescription: \u003c\/b\u003e\u003cdiv class=\"value description\"\u003e \u003cul\u003e\n\u003cli\u003eAn ideal distributor for restored 409s or for nostalgia racers\u003c\/li\u003e\n\u003cli\u003e Simple and clean installation with only three wires to connect\u003c\/li\u003e\n\u003cli\u003ePowerful built-in module produces a 7.5 amp single spark through high rpm\u003c\/li\u003e\n\u003cli\u003e Easy-to-adjust mechanical advance with supplied springs and stop bushings\u003c\/li\u003e\n\u003cli\u003e Vacuum advance canister for improved economy (can be locked out)\u003c\/li\u003e\n\u003cli\u003eCNC machined billet aluminium housing and billet aluminium base\u003c\/li\u003e\n\u003cli\u003eMaintenance-free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm range\u003c\/li\u003e\n\u003cli\u003e Polished steel shaft is QPQ coated and guided by sealed ball bearings\u003c\/li\u003e\n\u003cli\u003eAdvance plate and weights are fine blanked from chrome moly steel and QPQ coated for friction reduction\u003c\/li\u003e\n\u003cli\u003e Mechanical advance assembly can be locked out for crank trigger systems\u003c\/li\u003e\n\u003cli\u003e Advance weight pins are staked and tig welded to the plate\u003c\/li\u003e\n\u003cli\u003eNylon pads ensure smooth operation of the advance weights\u003c\/li\u003e\n\u003cli\u003e Supplied with a HEI style distributor cap and rotor (accepts Cap-A-Dapts)\u003c\/li\u003e\n\u003cli\u003eDoes not require an MSD Ignition Control\u003c\/li\u003e\n\u003cli\u003e \u003cstrong\u003eNote:\u003c\/strong\u003e Recommended coil is \u003cstrong\u003e MSD8207\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e These distributors feature a maintenance-free magnetic pick-up that accurately triggers the built-in powerful ignition module. This module produces a high-output spark which improves combustion in the cylinder, resulting in quick starts, a smooth idle and great performance. Just beneath the race rotor is a mechanical advance assembly so a timing curve can easily be tailored to match your application. The QPQ coated shaft is guided by a sealed ball bearing assembly for stability and endurance while a vacuum advance canister helps increase economy on those long cruises. The Ready-to-Run Distributors are also a breeze to install. Simply drop it in the engine and connect three wires and you're ready-to-run to your favourite cruise!\u003c\/p\u003e\n\u003c\/div\u003e","brand":"MSD","offers":[{"title":"Chevy 348-409, Magnetic Pickup, Vacuum Advance, High Output Module","offer_id":42692569301163,"sku":"MSD8393","price":2027.75,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0520\/9319\/0315\/products\/msd-chevy-348-409-magnetic-pickup-vacuum-advance-high-output-module-msd-pro-billet-ready-to-run-distributor-msd8393-srcopyright-1159747487.jpg?v=1749198008"},{"product_id":"clsh398s","title":"Clevite Cam Bearing Set STD – BB Chev 348-409 (CLSH398S)","description":"\u003cb\u003eCam Bearing Set STD\u003c\/b\u003e\u003cb\u003eSuit BB Chev 348-409\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eBrand: \u003c\/b\u003e\u003cspan\u003eCLEVITE\u003c\/span\u003e\u003cbr\u003e\u003cb\u003ePart Number: \u003c\/b\u003e\u003cspan\u003eCLSH398S\u003c\/span\u003e\u003cbr\u003e\u003cb\u003eDescription: \u003c\/b\u003e\u003cdiv class=\"value description\"\u003e \u003cp\u003e\u003cstrong\u003eHeavy Duty Cam Bearings\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003cstrong\u003eAL-3\u003c\/strong\u003e Steel back aluminium alloy without overlay\u003c\/p\u003e\n\u003cp\u003eIn the last decade or so engine development has increased dramatically. Each time an existing engine is revised or a new engine is developed, it pushes the limits of what its predecessor could produce both in horsepower and torque as well as fuel efficiency. With these gains, comes an increased load on the internal parts of these engines. One of these parts that are continually asked to perform under greater and greater pressures is the cam bearing. In engine configurations such as V6's and high RPM 4 cylinders, the cam bearing is a vital link along the path of the engines oiling system. If a cam bearing wears out prematurely the engine loses some of its oil pressure, which we all know can lead to premature engine failure. Other problems, which can be caused by premature cam bearing wear, are excessive cam lobe runout, improper timing, and generally poor running conditions. This is where strength and durability become key issues. This is why, in most applications, the O.E. manufacturers have turned to higher performing cam bearing materials. Traditional Babbitt can only withstand up to 1800 psi. Clevite's AL-3 material can withstand up to 5000 psi. Quite a difference. When trying to adapt Babbitt to an application that requires a more durable material, extra oil grooves are needed on the outside diameter of the bearing itself to help get oil to the rest of the engine. This only addresses the oil starvation symptom inherent to the real problem of premature wear. All of the other symptoms that were listed above still occur with the right material for the job, such as Clevite's AL-3, these extra oil grooves aren't needed at all. In fact this gives more bearing contact area to the block to help in transferring heat away from these parts and prolonging bearing and engine life. Remember, when strength and durabilityis part of the question, Clevite is the answer.\u003c\/p\u003e\n\u003cp\u003eOn certain modified performance applications Clevite also offers a TriMetal cam bearing material (TM-1) that provides even greater strength and durability. These cam bearings are able to withstand loads in excess of 8,000 psi, while providing surface characteristics that are very forgiving and conformable.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Clevite Engine Parts","offers":[{"title":"Suit BB Chev 348-409","offer_id":43503978610859,"sku":"CLSH398S","price":87.26,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0520\/9319\/0315\/files\/clevite-suit-bb-chev-348-409-clevite-cam-bearing-set-std-clsh398s-srcopyright-1159731320.jpg?v=1748869815"},{"product_id":"clms2323h-std","title":"Clevite H Series Main Bearing Set STD – BB Chev 348-409 (CLMS2323H STD)","description":"\u003cb\u003eH Series Main Bearing Set STD\u003c\/b\u003e\u003cb\u003eSuit BB Chev 348-409\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eBrand: \u003c\/b\u003e\u003cspan\u003eCLEVITE\u003c\/span\u003e\u003cbr\u003e\u003cb\u003ePart Number: \u003c\/b\u003e\u003cspan\u003eCLMS2323H STD\u003c\/span\u003e\u003cbr\u003e\u003cb\u003eDescription: \u003c\/b\u003e\u003cdiv class=\"value description\"\u003e \u003cp\u003e\u003cstrong\u003eH-Series Bearings \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese bearings are identified by a letter H in the part number suffix. Part numbering is based on the same core number as the standard passenger car parts for the same application. These bearings were developed primarily for use in NASCAR type racing, but are suitable for all types of competition engines. \u003c\/p\u003e\n\u003cp\u003eH series bearings have a medium level of eccentricity, high crush, and rod bearings have a hardened steel back and thin overlay. These bearings also have enlarged chamfers for greater crankshaft fillet clearance and are made without flash plating for better seating. Bearings with .001\" extra clearance are available for standard size shafts and carry the suffix HX\" (X = extra clearance). Rod bearings are available with or without dowel holes (HD = with, H = without), main bearings are available with standard 180 degrees upper half grooving and with full 360 degrees grooving (H = 180 degrees, HG 360 degrees). Use H series bearings with crankshafts that have oversize fillets and where engines run in the medium to high RPM range. H series bearings should be used if contact patterns obtained with P series parts are too narrow. Contact patterns should ideally cover 2\/3 to 3\/4 of the bearing surface. See accompanying contact pattern diagrams. If you aren't sure which type of performance bearing to start with, the H series bearing will be your best choice.\u003c\/p\u003e \u003cp\u003ePlease note: Some \"H\" series bearings will no longer be available with enlarged chamfers. Instead, the bearings will be narrowed in place of the enlarged chamfer to provide greater crankshaft fillet clearance. The new narrowed bearings will be available with a \"HN\" suffix and will be replacing the standard \"H\" suffix part number.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Clevite Engine Parts","offers":[{"title":"H Series Main Bearing Set STD","offer_id":43504858628267,"sku":"CLMS2323H STD","price":423.52,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0520\/9319\/0315\/files\/clevite-h-series-main-bearing-set-std-clevite-h-series-main-bearing-set-std-clms2323h-std-srcopyright-1159707947.jpg?v=1748507648"}],"url":"https:\/\/stealthride.co.nz\/collections\/gm-348-409.oembed","provider":"Stealth Ride","version":"1.0","type":"link"}