Jul 24, 2015 · The relatively basic 383 test engine has a set of Gil Mink–ported World Products Sportsman iron heads with a 10.5:1 CR. The cam is one of my hot street-spec hydraulic flat-tappet grinds. As you can see, it produces 536 hp and that’s pretty respectable output for an engine like this.
It features lightweight aluminum cylinder heads based on the proven Fast Burn design, with large intake runners and 2.00/1.55-inch valves. Beehive-style valve springs enable great high-rpm performance and durability, allowing the SP383 to rev higher and build more horsepower.
When tested on a 383 ci small block engine with 9.5 to 1 compression ratio and.540" lift roller cam, single plane intake manifold and 750 cfm Holley carburetor, the Fast Burn heads produced 497 hp at an incredibly low 5800 rpm.
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I used those same plugs (MR43LTS) on my Vortec headed motor with a ZZ4 cam and don't have any problems. I'm pretty sure that the Vortec heads take the same plugs as the ZZ4 fast burn heads. I haven't toasted or bent any yet.
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Mar 12, 2013 · vega on test run on motor 383 sbc zz4 alum heads .630 lift .258 [email protected] solid roller cam. machine work done by griffs cam shop billings mo.
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Chevy 350 383 400 Aluminum Cylinder Heads straight plug 327 283 Pro Header 64cc Chevy 350 383 - $699.99 ... SBC CHEVY 350 CRATE MOTOR 603 ZZ4 Race Winning Engine ...
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ZZ4 350 Base . As far as crate engines go, this one is a winner. The ZZ4 350 Turn-Key crate engine has been one of our most popular high performance crate engines since we started GM Performance Parts. Its legendary status is based on an incredible performance level that is stone cold reliable.
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The SDPC Difference ; We're the Experts The most trusted parts professionals since 1929 ; Free Shipping On any orders over $99* *Rules & restrictions apply, see shipping information for details.
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Twin Turbo Daily Driver Series. The Daily Driver Series is designed for the person who wants to drive their hot rod daily. These engines offer maximum reliability and still have an enormous amount of torque and horsepower on pump gas.
Please use the chart below as a preliminary head recommendation guide for our products. There are 4 different compression charts listed. First, pick your compression. Then, choose your bore (looking down) & stroke (looking across). The most common cylinder head recommendation that we suggest is listed below the cubic inch.
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Dec 01, 2007 · Stage 4 Peak Power: 427 hp Increase: 83 hp What We Did: We chucked the ZZ4's aluminum heads, and bolted on a set of Racing Head Service cast-iron Pro Action heads with 2.02/1.60-inch valves, which ...
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The best 68-69 383 engine was available on the road runner and coronet superbee. It made, some say underrated, 335 hp thanks to a number of high-performance 440 parts . It received the recontoured 440 heads with larger exhaust valves of 1.74", compared to standard 1.60" exhaust valves.
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Trying to find the right size carburetor for your engine. This tool will help calculate the size carb you need in CFM for stock or racing engines. Includes a rich graphical interface to visulize the output.