Screamin Eagle Tappets - Sweet Tracker | The Need for Speed with Revolution Performance

11 As you can see, the timing marks (arrows) must be lined up in order for installation to be accurate.
11 As you can see, the timing marks (arrows) must be lined up in order for installation t
12 With the cams in, Eric installed the Cometic cam cover gasket and re-installed the cam cover.
12 With the cams in, Eric installed the Cometic cam cover gasket and re-installed the cam
13 Eric wanted to install the new Screamin’ Eagle tappets (lifters) before moving on to cylinder installation. He made sure to lube the lifters excessively before installing them.
13 Eric wanted to install the new Screamin’ Eagle tappets (lifters) before moving on to c

14 After he installed the lifters, he tightened the lifter blocks to factory spec.
14 After he installed the lifters, he tightened the lifter blocks to factory spec.
15 Next, Eric needed to check the clearance of the piston rings to the RevPerf cylinders with a feeler gauge. He did this by taking the piston rings and placing them in the cylinder bore. This step should never be skipped. Eric says that if the pistons are smaller or larger by thousandths of an inch, the consequences can be dire.
15 Next, Eric needed to check the clearance of the piston rings to the RevPerf cylinders
16 The oil rings needed to be shaved just a tad, so he removed some material with a bench grinder. He then test fit them in the bores again and everything checked out so he moved on to installing the cylinders.
16 The oil rings needed to be shaved just a tad, so he removed some material with a bench

17 Eric installed the pistons onto the rods with the provided piston wristpins and circlips, and slid the cylinders down over the rings simultaneously. He dabbed assembly lube on the piston skirts for when the bike’s initially started.
17 Eric installed the pistons onto the rods with the provided piston wristpins and circli
18 With the cylinders and pistons installed, Eric placed the cylinder gaskets atop the cylinders since he was ready to install the new heads.
18 With the cylinders and pistons installed, Eric placed the cylinder gaskets atop the cy
19 One at a time, Eric installed the reworked heads onto the cylinders. Eric says it doesn’t matter which cylinder head is installed first. Every mechanic has his own method of doing things. Eric started with the rear head.
19 One at a time, Eric installed the reworked heads onto the cylinders. Eric says it does

20 Some test fitting of the stock pushrod tube covers to see if they’d clear RevPerf’s cylinders’ fins. No problem. I took some Scotch-Brite to the pushrod covers since I wanted to get rid of any bit of chrome on the bike.
20 Some test fitting of the stock pushrod tube covers to see if they’d clear RevPerf’s cy
21 The pushrod tube covers fit so Eric installed the other head and torqued the heads to factory spec.
21 The pushrod tube covers fit so Eric installed the other head and torqued the heads to
22 Back on went the intake manifold…

23 …followed by the stock pushrods.
24 With the stock pushrods back in place, the rocker boxes were re-installed and the engine was buttoning up nicely. The only thing left for this installment…
24 With the stock pushrods back in place, the rocker boxes were re-installed and the engi
25 …was to button up the rocker box covers.

Sweet Tracker The Need For Speed With Revolution Performance Reassemnled Engine

26 Overall, installation was a snap thanks to Eric. The two-tone finish is definitely cool and hopefully the 1,250cc bump will make some good power. Next month, we’ll bring you the dyno results after we install the SuperTrapp pipes, Daytona Twin-Tec ignition, and Mikuni HSR42 carburetor. Stay tuned…