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Post by cricket. There is some merit to that observation- the 429 had a 3" main journal, and the 427 had a 2.75" main journal- the smaller main journal will. have less friction and make more power and rev higher, given the same. airflow, cam,.
399hp 467ft/lbs of torque. Stock 22,200 mile original 1967 427 Corvette 1-4V. (actual dyno numbers as performed 6/06/05) 401hp 422ft/lbs of torque. Stock 2,400 mile original Hemi Cuda. (actual dyno numbers as performed 6/06/05) 418hp 451ft/lbs of torque. Look for the write up in a "unmentioned" (due to contractual.
Discussion Starter · #41 · Aug 14, 2005 Re: Boss429vs. 427SOHC- <---BIG BULLSHIT artist in the house they made the over the counter parts, and tested both 428 and 455 versions in engineering groups no kidding they never released a complete 455 TP- so what ? Ford sold TP427 heads as separate heads- there was even articles on how
Yeah, both those Ford engines were huge. The BOSS 429 needed the strut towers banged in for it to fit in the engine bay of the Mustang, LOL. I can only imagine the custom work required to fit a coyote into a modern car. Even my 6.1 has a huge spread between the valve covers, wide enough to be a difficult fit. S.
On car.info you can scroll through 4 images and look at specifications and statistics of Roush 427R Mustang Convertible Automatic, 421hp, 2007. Official image. Taken at ... 2007. Engine: 427R Mustang Convertible 421ps. Roush 427R Mustang
Depends on who built it, what it is used for, etc. The 427 can be worth a fortune, original untouched crate motors have gone for over $80,000. It really depends on your application, the 427 and 428 are FE engines, the 429 is a 385 (same series as the 460). All can be built up into monsters. DR Mrs Bears face 18.05.2016