427 sohc vs boss 429. Not having been there myself, I can only repeat what I read. The 429 also came as a thunderjet, in the t birds, 429cj, 429scj, and the boss. 53 60 ft all motor. Although it was never installed in a production car, the 427 SOHC powered numerous drag racing cars to victory throughout the 1960s and 1970s. In horsepower / Torque , which prevails a 427 sohc or boss 429, with same compression ratios, cubic inches, and valve lift / duration ? Jul 1, 2021 · Re: Boss 429 vs. I've heard the 428 is an FE, but what about the others? Thanks. The legendary 427 SOHC Ford, often called the “Cammer,” is one of the most exotic and influential engines in Ford’s racing history. Oct 18, 2008 · Here are some super-noob questions: What's the diff between the 427, 428, 429? A friend has a 68 427 for sale. . Mar 20, 2004 · The largest differences are that the 427 has a very large bore and, comparitively, short stroke. The Single OverHead Cam 427. Aug 3, 2005 · > > any opinions ? I have read that when Ford wanted its drag racers to switch from the 427 SOHC to the Boss 429, the racers really lost of lot of horsepower and engine speed due to the 429's heavier crank and bigger pistons, which used more power to overcome its inertia. Because Pontiac never built a complete long block tunnel port > 455, Bill S. He also says that > the Ford Boss 302 does not use a Cleveland head, because the Boss came > out in the '69 model year and Ford did not release the Cleveland > engines until the '70 model year. 427 SOHC- <---BIG BULLSHIT artist in the house Big Al wrote: > Any of you guys know what heads fit the SVO 385 series blocks with the extra > 2 head bolts per cylinder? One is in the valley, the other is just off the > exhaust port. 060 over 289, face plated T5. Jun 20, 2024 · A '68 427 will be a heckuva motor, but it's not quite the same as the NASCAR racing motor that grew the legend. Umm, the Ram Air V tunnelport? : ( 180 Out Feb 21, 2024 · Boss 427 vs. KS Nov 17, 2010#34 What about the Maverick's ?? Weren't the 70 maverick's run with both the SOHC & the Boss 429 ??? Wasn't a Maverick lighter than a Mustang, and therefore more desirable ? Anyone have pics to share of either ?? a Maverick that originally belonged to Dave Lyall with first a cammer and then a Boss '9. The 427 though had 4 bolt mains. These are custom made and designed by SI Valves here in CA and manufactured in Argentina (same country as Ferrea). Would a sohc 427 fit in a 1969-1970 mustang with the boss shock tower modifications ? Aug 16, 2005 · Re: Boss 429 vs. Usually referred to as the Cammer, or the SOHC (pronounced sock) motor, this is the baddest of the bad as far as production/race engines go, from Ford Motor Company, or anybody else for that matter. The 429 was a whole different animal than the 390, 427, or 428. 11. I saw a 67 429 at a show. Boss 429: Ultimate Mustang Showdown (Credits: Mustang) Full disclosure, this Mustang was previously featured on our website in April 2022 with an asking price of $129,950, suggesting a decrease in value. 12 at 122 mph and 1. Gerard TS 14 -- Jan 26, 2026 · Ford's big block engines are among the best-known and most respected V8s in American history. Nov 15, 2010 · Having talked to the original owner/racer of a factory Ford drag car I'm restoring he plainly stated "if I would have switched out the Boss 429 for a 427 SOHC I probably would have been more successful with the car". 427 SOHC- <---BIG BULLSHIT artist in the house > Give up. Mar 28, 2008 · The 427 had a bigger bore and shorter stroke than the 428. Dec 8, 2006 · 427 SOHC in a '69 429 Boss Mustang! Anyone remember Pop's Toy. They had the cammer running really well on the drag strip, but couldn't get equivalent performance from the Boss 429 when Ford's sponsorship deals made them switch to the new engine. Nov 15, 2010 · The racers all hated the Boss 429. how do they measure up in width , length , hood clearance with each other ? . I will corrct myself though. 427 SOHC- <---BIG BULLSHIT artist in the house the tunnel port heads fit ANY Pontiac engine- from 389-400-421-428-455 all Pontiac blocks are the same, they only differ in main bearing size Nov 16, 2010 · We talked about 427 sohc vs 429 boss build ups. Aug 12, 2005 · Re: Boss 429 vs. The 390, 427, 428 blocks were cast based off the 352 block. Oct 12, 2013 · When comparing a sohc 427 to a boss 429 in terms space in an engine compartment how do they compare ? . I have complete sets of Stainless Steel valves for the SOHC, for both adjustable and non adjustable factory heads as well as the reproduction heads. Some of them kept going, and winning, with the SOHC. Starting in 1968, the 427 was switched from solid lifters to hydraulic, and the rated HP dropped from 425 to 390. says there's no such thing as a TP 455. I'm not saying either is slow, just that for the money invested, you can make a LOT more power and do it more reliably when taking advantage of around 40 years of development and technology. From the pure-blooded racing heritage of the 427 and its derivatives to the massive torque-happy Dec 8, 2006 · The cammer probably has more of a nostalgic coolness, but the Boss 429 looks pretty cool as well. This engine makes gobs of horsepower at the sacrifice of torque. IMHO best suited for light, manual transmission cars driven very agressively in the high rpm ranges. Good old Boskovich! 65 mustang fstbk, pump gas street friendly Camshaft Innovations cammed . So the May 21, 2004 · The 427 SOHC head is the only true hemispherical combustion chamber that Ford made that saw any large street use, at least compared to the Boss 429.