Now out of all BBO's A,B,D,E,F,G which is your better block's? Which one to look for?I see B,G,and E are 400/442 blocks. What was special about these? Just wanting info, alot of scrap yards around this area and farm's so if I find some that is valuable I want to snag it up before they go to the crusher or even what type of car should a guy look out for, 442,Starfire,Salon, F85.......

 

The 68-72 455's are probably considered the most popular,but you can build any BBO. The earlier BBO's,like the 400's & 425's had some different lifter bore diameters & bank angles,so your typical off-the-shelf cam/lifter kits will not work,and you will need something custom-ground.They are still great engines to build though.ALL of the 65-67 BBO's,400's & 425's,had forged cranks,and 7" rods.The 68-69 400's had the same crank & rods as the 455's,but much smaller bores.

 

bore diameters: G = 3.87"; B, E = 4.00"; A, D, F = 4.125"
65-6 D have .842" lifters, 45 deg. lifter angle except
66-7 Toronado D have .921", 39 deg.
E has .921, 39 deg.
1967 D exc. Toro, and all F, G have .842", 39 deg.

 

ALL of the 65-67 BBO's,400's & 425's,had forged cranks,and 7" rods..... This is good, right? Don't understand the measurements of the engines to well. Get me to build a house no prob. What head is the one you want. Which engine is the engine every one wants out of a big block?

 

General opinion seems to be the 455, with C, K, G, or E heads, anything but J's pretty much.

Got 3 455's here, 2 sets of G's and a set of K's.

 

So what about stroke? What does this do to an engine. Is it like my wife, the more stroke I give her the more she screams!!!!

 

Hey Mark question for you. I still want the 383 stroker, but let's say that 10 G went into a 455.Whats the out come

 

what is your definition of screams? more stroke means less rev but more grunt. if you scream a longer stroke it may turn into you screaming from a broken rod

 

Doesn't change it much, parts are about the same for both, with the big block being a few bucks more. Depends on desired hp/tq and rpm range as to which way to go. The most popular combo yields 380 cubic inches for a small block.
And you won't need 10K unless you're going EFI.

 

Question then, what is possible out of a 455 with 10G's and also going EFI. One day want to get my hands on 69/70 442 convertible and do this. For sure we are going with fuel injection on the 380 .You recommend, that's what we are doing.