2003年5月4日 · What is attractive about N351 heads are the same things that seem unattractive to some: 1. Special offset rockers get rid of the pushrod contraction. Helps hi lift flow. 2. Impressive exhaust port. Requires special header flange. 3. Last but not least. 10 degree valve angle (like in clevelands without cant).

2006年12月3日 · The N351 heads have a 10 degree valve angle and a trick chamber. This leads to great velocity and combustion according to a local winning engine builder. These heads make better power than the flow bench numbers would indicate.

2011年10月3日 · Hey guys, what do you know about SVO N351 Heads? I have come across a complete never-fired 383W with forged Eagle crank/rods, JE pistons - 10.5:1, SVO N351 heads, and a matched Super Victor intake (I don't have the …

2006年11月22日 · A sucessful circle track engine builder was pointing out that the N351 is the opposite of my 351C 4V heads. High velocity, good charge motion makes good power and less than stellar on the flow bench. Where as a 4V cleveland is a flow bench king (for OEM Iron heads) with fairly poor velocity and charge motion.

2006年2月27日 · The Current heads I have on this motor are 1970 D0OE heads, with a mild port job. I have not had this motor or car on the dyno, but plan to this spring (car on dyno). Currently running the motor externally balanced with a flex plate, triple disc clutch feed thru a 3 speed AMC unit to a 9" ford with 6.20 gears.

2012年9月15日 · Re: N351 heads on a street 347? Post by nhrastocker » Tue Sep 18, 2012 1:28 am raceman14 wrote: Great flowing head with killer bottom end, best thing is the way it swirls the fuel and air, superior to almost everything out there with the xception of the Chevy Vortec.

2010年9月16日 · - N351 heads - light tickle work in the bowls, untouched runners, & milled .200" for 15.3 to 1 CR. Class didn't allow ported heads. Valves were Ti 2.050" x 1.600" x 5.140" x5/16" - Super Victor 9.2" intake milled to fit, no other modifications whatsoever. - 980 CFM 4150 carb from Keith Dillard at Lonestar Motorsports - Dart block (4.165" bore)

2016年12月2日 · So, 1- Ford N351 heads or W2 heads mopar. IF a Mopar, a 340 stroke or 360 stroke. (Must be stock stroke and 368 cubes max), FYI I plan to buy ALL the best parts, Lightweight Bryant crank, Etc. Jessel Valvetrain. Thoughts? Thank you all very much. (Please no Cleveland heads, been over that, and CHI does NOT make iron heads, period, been there. Rod

2003年5月25日 · The class my brother-in-law is fixing to go roundy-roundy (circle track) in requires cast iron heads. He's got access to a set of N351 Motorsport heads that have been ported out well. I can't remember if the ci limit is 306 or 357. 357 I think. Anyone have any opinions or success with these...

2013年1月11日 · Designed exclusively for N351 and Z304 heads with the 0.150" offset; Rocker body made of 7075-T7 aircraft aluminum; Can accomodate as big as a 1.625" diameter valve spring; 8620 billet steel trunnion axle; Beefy oversize pin on roller tip; Tiny pushrod cup oiling hole so as to help control top end oiling