Tell us about your vehicle to find the right parts faster. Light pinging now and then is unlikely to do any damage, but it certainly will when there is an excessive amount of it under load. 1/4th of a quart. Our head builder noticed the low grade locks on the market fit more loosely than he felt they should, not to mention the possibility that they were made of inferior metal. Every 2000 miles or less would be optimal. Our Comp Cams retainers # 75740-16 and Comp ID locators # VTH-4771-16 are made from 4130 chromoly steel. This procedure is not performed at the factory due to the fact some engine/head builders prefer to establish the valve to guide clearance and finish in different ranges. Some customers bought our engines and did not fully understand our warranty and the maintenance needs of the engines. Before you finalize your purchase of this assembly you may add any of these upgrades to your shopping cart. You must use a rev-limiter on this engine. We strongly recommend purchasing a fuel to air ratio monitor. - HOWARDS ROLLER CAM AND TIE BAR STREET STRIP ROLLER LIFTERS. This also allows for future deck re-surfacing without compromising the integrity of the block. If you have an overdrive trans., then this cam, coupled with the dual plane intake, would allow the engine to cruise in overdrive with rpm in the 1950-2050 rpm range. Longevity, reliability and low maintenance. Regular hardened pushrods will most likely flex in the engine when running above normal RPM ranges, and risk bending under high RPM. The MSD Street Fire HEI distributor is a far superior unit compared the regular HEI unit that comes with this engine. It will not interfere with the break-in process. Never let the engine idle for excessively long periods during the break-in period. Listed below are more of the items installed on the outside of the engine, which makes it a "Turn Key" engine. These rods do look impressive. See our other listings for this oil. 5. There are two sizes available, and it is the bellhousing size on the transmission that determines this. Most of our engines include the correct spark plugs. Comp Cams SBC Xtreme Energy Step Nose Hydraulic Roller Camshafts. It is beautiful with a polished CVF front drive and lots of go-fast parts. They use a low grade stainless that actually has a near non-existent amount of nickel in them, but that's not the real problem with them, as stainless steel has no advantage over high grade heat treated steel when it comes to a roller rocker. This engine is best suited to operate with an electric fuel pump, with a pressure regulator set at 6-6.5 psi. ARP-2000 rod bolts: This is one upgrade that we find to be very valuable. Our crew wrapping up for the day. There is no inherent weakness in the 421 engine when using a Dart high performance block. I can tell you for sure that using such low grade, "no-name" roller rockers is asking for trouble. Cost of this ARP 2000 rod bolt upgrade is $89.50 We have this upgrade featured in our other listings. It is then run for approx. We have scrutinized these products in the past and found all of the above problems, and I can tell you there are most likely many more. This may alter your initial starter adjustment, and if it does, you may need to do a light adjustment once the transmission is installed. If you do not opt for this upgrade, the assembly will still be fully balanced. It's well known that the deck dissipates much of the built up heat an engine generates. Do not worry about initial timing, as it will be determined by the total timing. Racing oil must be changed more often than conventional oil. c $2,612.24 + c $119.96 shipping Keep the crate your engine came in to ensure a safe return to our workshop. 540. This block routes the oil in a very different pathway compared to a GM block. The difference is dramatic to say the least. The PBM competition series is compared to the highest level of those three. See our other listings for info on all of our engines. We're all hungry for as much horsepower as we can get, but building an engine of a given size to higher horsepower will always require a trade off. Pictured below is a file photo. Always opt for the medium length version, as this will help maintain oil pressure and volume much better than the short version. The satin covers below are by far the most popular. Another benefit of the evac system is that you're not contaminating the fuel and air mixture with semi-burned byproducts from the engine oil and combustion process. Their ages range from 40 to 67. Timing components: SA Gear 8999T billet double roller timing set. We do not use or sell non branded, (no-name) roller rockers, period. We have also noticed that the degree span from initial to total timing is a slightly closer, approx. This also establishes the engine's hp output and max rpm. If this engine would have had the 1.6 rockers like the one above, it's fair to say the numbers would have been even higher. If you do think you will be driving significant numbers of miles, we strongly recommend staying with our hydraulic roller cam package. and whether or not you purchasing a big block or small block engine. This is a file photo. MSD STREET FIRE DISTRIBUTOR. We usually have to change carb. This SFI flexplate is made in the USA and will resist cracking and warpage to a very high degree. Use heavy gauge battery cables. As you may know, plug wires come in many different grades. The cost to do a repair once the engine is installed can be very expensive for both us as the seller and for the customer. Before installing the valves, we apply a heavy coat of engine assembly lube to the valve stems. Threaded dipstick is included. Official Dyno Report with this cam, NKB heads, dual plane intake, Quick Fuel SQ 750 carb, and MSD distributor. Our experience in years past with such rods and cranks has been disappointing to say the least. These other sellers have capitalized on our name as we see it, and many customers searching for us will inadvertently find them, thinking we are one in the same company. When purchasing a flywheel for manual transmission use, be sure to know what tooth count you need. Cost of the MSD is $108.50 We have this upgrade featured in our other listings. We have a total of seven machinists/engine builders. These heads are excellent in design and quality. design, which is a well proven design far superior to the style many others use in engines. You may have noticed other sellers using a similar name offering similar products. This cam choice puts your setup nearly into the Pro-Street league.
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