The following instructions begin after the timing cover and old timing set have been removed.
Installing the timing set and degreeing the camshaft will be easier if you loosen the rocker arms so that the camshaft can turn freely. You should be able to turn the camshaft by hand. Make sure that the engine mounting surfaces and your new timing set have been thoroughly cleaned with a good solvent. If you are using a timing set with three keyways, select the appropriate keyway for your camshaft timing specifications. COMP Cams ® recommends the standard timing position for most applications. This position uses the round or “O” timing and keyway marks. Standard Timing Location: This is the same as original O.E.M. setting. Use keyway and crankshaft gear tooth marked “O”.
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Removal 1. CAUTION: The No. 1 cylinder must be set on top dead center (TDC) of the compression stroke or the synchronizer assembly will not be installed correctly. CAUTION: Do not turn the crankshaft or the camshaft during the removal and installation procedure or the fuel system timing will be out of time with the engine and possibly cause engine damage. Rotate the crankshaft until the No. 1 cylinder is at TDC of the compression stroke and the TDC mark lines up with the timing mark.
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The Performer-Plus Camshaft for Chevrolet LT-1 engines is designed for optimum torque from the low-end to the mid-range. It has a smooth idle, and is ideal for daily driven vehicles operating within the factory RPM range. Due to the increased lift of this camshaft, you MUST change your valve springs on STOCK heads, to springs capable of handing the Read the rest of this entry »

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1. Remove stock timing cover. Rotate engine to top dead center of cylinder #1 so that the timing marks on the original crank and cam sprockets are directly lined up with each other, i.e. the mark on the crank sprocket will be at 12 o’clock (straight up) and the mark on the cam sprocket will be at 6 o’clock (straight down).
2. Remove sprockets and chain.
3. Install desired offset bushing from enclosed set. Set selection provides 0-Gray, 2-Gold, 4-Copper, 6-Silver, 8-Black, Camshaft Degree Options.
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The VS171 twin cam setting/locking tool kit has been designed for use on multi-valve engines (twin cam) to lock the camshafts, which are under pressure from compressed valve springs, from rotating out of their timing positions when the timing belt is removed. If the camshafts are allowed to move from their timing position possible damage to the inlet and exhaust valves may occur due to contact with the piston crown. By locking the camshafts in position it will allow easier replacement of the drive belt and reduce the risk of incorrect valve timing from taking place. The kit includes camshaft locking pins which can also cover specific crankshaft/flywheel locking applications.
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(Applications – Ford Mustang, Crown Victoria, Ranger, F-150, and Explorer)
NOTE: Be sure to keep right and left bearing cups, shims, and bearing journal caps separated!
1. Install ring gear on Torsen differential. Torque bolts as specified in the Ford Service Manual.
2. Install two new journal bearings on Torsen differential.
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Removal and Installation
1. Disconnect the battery ground cable. For additional information, refer to Section 414-01.
2. Remove the accelerator cable snow shield.
3. Detach the spark plug wire retainer.
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Yenko™ Chevrolet located in the town of Cannonsburg, Pennsylvania, was one of the largest custom muscle car shops of the late 60’s. The lightning quick Yenko™ cars were so popular that, in 1969, Yenko™ used Chevrolet Central Office Production Order (COPO) system to have 427 cubic-inch engines installed into the Chevy Nova™ right on the factory assembly lines. The high performance and very limited production of all Yenko-customized cars makes them very valuable in todays collector car market.
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Ford provides NO procedure to replace the Camshaft Position Sensor without the special tool shown in this article.
CAUTION: Syncro Positioning Tool T95T-12200-A (303-529) must be obtained prior to installation of the replacement synchronizer assembly. Failure to follow this procedure will result in the fuel system being out of time with the engine, possibly causing engine damage.
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Cylinder Heads
Mark IV cylinder heads, made by Chevrolet, will not interchange to a stock, production Gen.V Chevy block. There will be a water leak into the lifter valley because of a mismatch of water jacket core holes. Likewise, stock production Gen.V cylinder heads, made by Chevrolet, will not interchange onto Mark IV block cases for the same reason. There are exceptions. You can put Mark IV cylinder heads on a Gen.V “Bowtie” block because the Gen.V “Bowtie” cases have smaller Read the rest of this entry »

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