Shelby's personal BOSS 302 Cobra ??

[Nedsel]

A Boss 302 won't fit into a standard 289 engine bay without modifications to fit the larger heads. But Shelby did put a 351 Windsor into CSX 2589.

[1ntCobra]

Perhaps the Boss 302 would not fit in an original 289 Cobra, but Shelby has certainly owned several completion and continuation Cobras. I sort of recall him mention in a video that he had just built a small block Cobra with an automatic transmission for his personal use. I assumed that was a CSX7000 or CSX8000. I wonder if a Boss 302 would fit in one of those.

[1985 CCX]

Hmmmm maybe so?

CSX2498 in 70's......... Karl's dad's car... Now has 289 again, but....
'69 Boss 302. Installed Fall 1969 and removed Fall 2002............

[LMH]

Originally Posted by Nedsel

A Boss 302 won't fit into a standard 289 engine bay without modifications to fit the larger heads. But Shelby did put a 351 Windsor into CSX 2589.

Ned, Windsor or Cleveland?
Larry

[Bernica]

I assume we are talking about the old Boss 302 that was the test bed and precursor for the Cleveland. The old Boss was only built in '68 and '69.
The new Boss is a completely different engine obviously...

[1985 CCX]

Post transplant....

[Kit Coyle]

The BOSS 302 was only made in 1969 and 1970 in Ford's effort to beat the Z-28
Camero in the Trans-am Series. The blocks were a special iron alloy block
with 4 bolt mains and screw-in freeze plugs. The heads were what later
became the 351 Cleveland head. It was a 7000-9000 RPM race engine with
large ports and valves which suffered in the midrange where the fuel velocity
dropped off. I have a vintage 1970 Boss in my ERA and it fits easily. The only
concession was a custom header set up for the heads.