Falcon65

Any leads on info about doing this swap? Just blew up the Windsor I had in there and looking to update the car and keep the shock towers.

G Atsma

The LS is a little wider than the Windsor, so do some measuring and see for yourself.

Project GatTagO

iTrader: (7)

I have a very detailed build on a 67 Cougar. Link is in my signature. Not sure how that compares to a Falcon. As G said, a LS is a little wider than a short deck Windsor.

Andrew

Michael Yount

iTrader: (1)

LS has the same deck height as a 351 Cleveland - both around 9.2". 5.0L based Windsors - 8.2" deck height. The 65 Falcon engine bay/front suspension same as a 65 Mustang. Need to find someone who's swapped an LS into a 65/6 Stang.

64post

iTrader: (5)

pdxmotorhead

IIRC its the way the heads are made,, the block isn't the problem, the exhaust manifold ends up wider on the fords ?

Michael Yount

iTrader: (1)

I thought Atsma was referring to the little Windsor -- 8.2" 260/289/302, not the big 351 Windsor. Yes, the 9.2" LS is going to be taller and wider at the heads than the little Ford V8's that originally came in the Falcon. About the same as a 351C as mentioned above. And a bit shorter/narrower than a 351W.

pdx -- the dimensions mentioned are the deck height of the short block - centerline of crank to the head mounting surface. It's a 90 degree V -- if you have more inches from crank to head mounting surface -- that moves the heads both higher and wider along the 45 degree angle. The head size itself may play a role -- but it's the taller/shorter shortblock that moves them higher/wider. Try to shoehorn a 10.3" deck 429 or 460 (429 is actually 10.322") and you'll see - the heads come up and splay even wider.

G Atsma

It's not as much about deck height, as head casting shape. The LS heads are more square to the deck surface, and stick out more than Windsor heads which "lean in" to the center of the engine more than LS heads, and for that matter, Cleveland heads.

Michael Yount

iTrader: (1)

G Atsma

I realize it can be, but 64post is quibbling about a .26"difference, where the head configuration accounts for more than that when discussing the difference between Windsor and LS heads, and even more difference between Windsor and Cleveland heads.
In the interest of clarity, I edited my previous post.

Michael Yount

iTrader: (1)

Yup - got it. I didn't know why we'd be talking about any comparison other than the baby Windsor that might've originally come in the car - but I went back and reread OP's post - perhaps he had a 351 in there rather than a 302-based "Windsor". We won't know less/until the OP comes back in to enlighten us.

Nevertheless - generally speaking you can look at the deck height of the short block, for engines with similar sized heads, to get an idea of what's gonna be taller/wider. The old 400/425/455 Olds engines had a 10.625" deck height -- and that height combined with narrow heads made for an intake manifold that looked EXTREMELY wide -- just what happens when you extend the "V". Obviously, hemi heads and SOHC/DOHC engines have much bigger (wider and taller) heads which brings a different variable to the equation.