427 the magic number

[Boza]

Well on a cold and rainy Melbourne day I was catching up on some tv and you tube vids.

Well most of the stuff I watched when it came time for the motors on both sides everyone seems to be going to 427CI like most guys are going we used a dart 427 crate or an ls series based 427CI etc... both N\A and with some sort of blower, NOS, or turbo's it's still a 427.

My question is why is everyone obsessed with this capacity these days or is just the latest and greatest in engine development

[Bossxr8]

427 has pretty significant heritage for both Ford and Chev.

[big_landau]

I thought 426 was the magic number.

[jpd80]

Originally Posted by big_landau

I thought 426 was the magic number.

To Chrysler.

Ford had 427, 428 and 429 engines.

Most of the American aftermarket has moved on to either large capacity small blocks
or mega capacity Big Blocks with +500 cubic inches..

[big_landau]

428 and 429 just aint the same as the 427.small block strokers mean less weight and massive torque, thats the way id go in this day and age.

[OzJavelin]

Originally Posted by big_landau

428 and 429 just aint the same as the 427.small block strokers mean less weight and massive torque, thats the way id go in this day and age.

427 small block just ain't the same as the original 427BB .. One has a rich and fabulous racing history that any real Ford enthusiast should revere .. The other is a pile of aftermarket parts ..

BTW: 7 Litres was the maximum capacity for a lot of racing classes (eg NASCAR) .. Hence the crowding of engines around that 7 Litre range .. Ford 427, 428, 429, Chev 427, Pontiac 421, mopar 426 .. The modern incarnations are probably coincidence, homage to those great engines, or leveraging an efficient bore/stroke/rod-ratio?

[big_landau]

i was comparing the bb 428,429 to the 427 bb, I probably didn't word it right.if I was building a engine for a car that wasn't original I wouldn't put a bb into it id go a sb stroker.

[burnz]

that's the benefit of the LS7 gen IV alloy small block, light weight mouse motor..

[Boza]

Yeah it's just most of the shows were about cars either being built or car's that were at sema last year. and everyone they interviewed or showed cars being built almost all were using small block block 427 crate motors or building 327 motors it's just that last year or before itwas like 363 or 383 was the capacity of choice now it's 427 where will it end for small blocks

[mcnews]

426 is the most magic number in muscle car history. Bar none.

[Chopped]

And that is why the W427 will be a collector's item.

[TC200six]

The 427 engine displacement originates from the maximum size allowed by NASCAR in the 1960s. That's why Ford and GM both built engines of that size, although Chrysler had a 426.

[burnz]

GM most famous nascar engine was 348 BB wedge followed by the 409~427 BB wedge.

I always thought fords 429~460 were their most popular.

[MethodX]

Pontiacs 421 has a lot of history too, in the GTO.
And the 455's in the Oldsmobiles and Buicks.

[FOMOCO 1]

HEMI 426 is a weapon, but don't forget the KING 427 S.O.H.C banned from NASCAR, or the Shotgun 429 another great Ford powerplant that was de-tuned to pig status for street duties...

[MethodX]

Originally Posted by FOMOCO 1

HEMI 426 is a weapon, but don't forget the KING 427 S.O.H.C banned from NASCAR, or the Shotgun 429 another great Ford powerplant that was de-tuned to pig status for street duties...

Chrysler were planning a dohc 426 at the same time.
Belt driven cams.

[Iggypoppin']

Ahh the ford cammer SOHC 427. The holy grail of ford engines!