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Speed Secrets: How Well Does a Big Block Ford Respond to Modifications?

While not as wildly popular as an LS, Small Block, or even a Big Block Chevy, there is still an awful lot to like about a Big Block Ford. From the early high compression ratio being 10.5:1, to the massive available displacement, and how common it is to still be able to see the cross hatch on the cylinder bores, even from a junkyard engine with over 100,000 miles on it. Being that these 460 Ci beasts are so readily available from the local junkyard, Richard Holdener from Speed Secrets and the guys from Comp Cams thought that would be a good start to their next project.  

Starting with an early version 460 Ci BBF from a 1968 Lincoln, it’d be easy to throw in a stroker crank, increasing its already massive displacement to 557 Ci, and build an extreme race engine, but what about a good healthy, daily driver oriented BBF? To find out how well a 460 Ford engine would respond to mild modifications, Richard and Comp Cams came up with a top end package that is based around Comps cam, XE262H, with a .515/.520 lift, 218/224 duration, and a 110 LSA and incorporates mildly ported stock heads and aluminum 4V intake. 

Before starting the modifications, Richard needs a baseline so he installed a 750 cc 4 barrel carburetor and long tube headers and took the BBF to the dyno where it produced 349 HP @ 4,700 RPM and 492 Lb-Ft of torque @ 3,000 RPM. After installing the hearty but streetable Comp cam and completing some minor bowl work, reworking the exhaust ports, and port matching the intake ports on the stock style heads, the team installs the heads, aluminum 4V intake, and upgraded to aluminum roller rockers. This top end package was worth some serious power, producing 437 HP and 507 Ft-Lb of torque. At almost a 100 HP gain with virtually no effect on idle quality or drivability, the junkyard BBF is perfect for a daily driver.