Recommend using with larger displacement.An SS cycle engine is the best choice when it comes to replacing your worn out stock harley engine and DCV-Twin is the only place to shop for your harley replacement engine. Requires high lift valve springs, adjustable pushrods, increased compression, head work, perforamnce exhaust and intake. This is a great all around camshaft for engines with increased compression ratio, produces solid low end performance and mind blowing mid and top end power. Increased compression is required for bottom end performance. Will respond well to increased compression and head work. Will respond well to increased compression and cylinder head work. Aggressive camshaft requires performance pushrods, lifters, high flow air cleaner, stepped exhaust and high lift/high load valve springs (See #1207).īolt in for Evo engines. "The Big Nasty" Get serious with bore size, ported cylinder heads & throttle body. Cylinder head & intake work + high flow throttle body & performance exhaust recommended. Shines in 124 + cubic inch engines with added compression. Easier to tune, better street manners & revs up higher than the 508. Shines in 114 and larger engines with increased compression. The 508 revs up faster than the 521 grind, sounds nastier and pulls harder out of the hole. Shines in 114 + cubic inch engines with added compression. Responds very well to increased bore and or compression Great bottom end with substantial gains above 2,800 RPM when compared to stock.
Great all around camshaft, Feuling's go to for 4 1/2 stroke 114" & 117" looking for a little more than our 465 grind. Responds well to increased bore and or compressionīolt-in. Solid bottom end with substantial gains above 2,800 RPM when compared to stock. Best all around camshaft, Feuling's go to especially in 4 3/8 stroke. Will respond well with slip-on mufflers and a high flow air cleaner.īolt-in. Wide powerband throughout the entire RPM range when compared to stock. Requires high lift valve springs.īolt in. Requires high lift valve springs.Įye blurring mid and top end power. Will respond well to ported heads and open intake. Works best with larger displacement engines and added compression. Go to bolt in camshaft for 110 engines.įreight train pulling power. Respondes well to head work and increased compression. Wicked power band for 103 and larger engines.
An Excellent compromise between the 525 and 574 achieving the best all around performance. Producing strong low and mid range power.
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