He disassembled it, had the crank machined and the rods rebuilt, and added a set of Federal-Mogul hypereutectic pistons. Since Tim was building a whole new motor, he latched onto a used roller cam 350ci short-block that came out of an ∨9 Caprice police car. This way, you could use your existing, older two-piece rear-main seal block. This will require using aftermarket hydraulic roller tappets, which are more expensive than the factory hydraulic roller tappets. Then employ a thrust button to control cam endplay. Trim the ears off the production roller-cam thrust plate and use it as a spacer between the cam gear and the block. However, according to our erudite engine enthusiast Kevin McClelland, you can use this cam in an early two-piece rear-main seal block. This OEM-style roller cam is intended to work in ∨8-and-later roller cam small-blocks, because it requires a production thrust plate. The GM Performance Parts HOT hydraulic roller is a great, affordable cam ($175 from Scoggin-Dickey Performance) and begs to be matched with a set of Vortec heads. This also required two small cast-in bosses in the middle of the lifter valley to mount the sheetmetal retainer, called the spider, which retains each pair of lifters.Īll this block information is given for several reasons. To accommodate the taller hydraulic roller lifter, Chevy increased the height of the lifter boss. Chevy followed that in ∨8 with hydraulic roller cams in most V-8 engines. Starting in ∨7, Chevy converted all small-blocks to a one-piece rear-main seal combined with an excellent one-piece oil pan seal. These roller cam blocks differ from earlier blocks in several significant ways. Chevy put these engines in Camaros, Firebirds, police cars, some Caprices, and ¾-ton truck chassis also used in motor homes. The hinge pin to this plan is an ∨8-or-later 350ci roller-cam cylinder block. But before you dive right into this deal, there are a few important details that you need to know that could save you money. Our pal Tim Moore is building this exact package. Sprinkle on an aluminum GM Vortec dual-plane intake and you have an outstanding combination of all-new parts, with the heads, cam, and intake costing less than $800! Bolt on a set of Vortec iron heads and a GM Performance Parts HOT hydraulic roller cam. Improved airflow is usually accompanied by a hefty price tag, but check out this combo: Start with a late-model roller cam 350ci block. The key to a strong engine is the combination of great heads and an excellent camshaft.
Were not there yet, but were always searching for better ways to build a small-block and we think weve stumbled onto one that is plenty hot. Face it: Everybodys looking for The Dealyou know, the 400hp motor for $100.
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