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I have a 49 Willys pickup with a Ford 302 in it. I have heard that you can
put 351 heads on it for more power. I know this might seem off subject but
I was wondering if anyone knows how this will afect the low end performance.
Any thoughts...comments?
Thanks
Geno Hacker - Arizona 49 4x4 pu


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Geno Hacker wrote:

From: Geno Hacker <linkupgear@...>

I have a 49 Willys pickup with a Ford 302 in it. I have heard that you can
put 351 heads on it for more power. I know this might seem off subject but
I was wondering if anyone knows how this will afect the low end performance.
Any thoughts...comments?
Thanks
Geno Hacker - Arizona 49 4x4 pu

Well if you go ahead and do this, you'll be needing a parts
source for your D25 and Timkin axles...

In short....don't do it.

Landen Schooler

Hi Geno,

Back when I was into mustangs this was something that the magazines talked
about a lot. Personally I've never done it but I think it was meant to
improve head flow. Better flow usually equals higher revs. It doesn't
sound like something you'd want for a 4wd truck but I'm sure that if you
look around and talk to some of the mustang guys you could get better info.
I'm just a shadetree hotrodder and definitely no pro at this but I think it
probably would drop torque at the lower end in exchange for more HP at the
top end.

From what I remember there was some machine work necessary to fit the intake
manifold to the heads.

Good luck,

Jerry

On Sat, 19 Jun 1999 16:46:36 PDT Geno Hacker <linkupgear@...>
writes:

From: Geno Hacker <linkupgear@...>

I have a 49 Willys pickup with a Ford 302 in it. I have heard that
you can
put 351 heads on it for more power. I know this might seem off
subject but
I was wondering if anyone knows how this will afect the low end
performance.
Any thoughts...comments?
Thanks
Geno Hacker - Arizona 49 4x4 pu

It's been too long since I hot rodded fords to remember the details, but
here goes:
The 351 Winsor heads will bolt onto a 302. I think the 302 intake will
work, if I remember right the 351 intake will not because the block deck
height is different. There could only be two possible advantages:
1) The chamber size on the 351 heads are smaller and thus will boost
your compression. I don't think this is the case.
2) The valves and ports on the 351 heads are larger. this will help on
the upper RPM ranges but won't do diddly on the lower end, may even hurt
low end performance.
I question whether it would be worth the trouble. A torquer cam and
exhaust system mods would probably do more to boost performance than
anything.

Hope this helps

Robert
53 Wagon

Tne heads you are talking about are 351 windsor, If I remember, the are
30 cc smaller, or 1 compression rating higher..
IE if 302 is 9.0 to 1, it increases to 10.o to 1,
We used a shim head gasket, with a metal based paint sprayed on to seal
it on installation.
The rocker arms wrer different, but i dont remember what they were off
of, ( shorter i think).
They had better pickup, power, torque..

--- Geno Hacker <linkupgear@...> wrote:

From: Geno Hacker <linkupgear@...>

I have a 49 Willys pickup with a Ford 302 in it. I
have heard that you can
put 351 heads on it for more power. I know this
might seem off subject but
I was wondering if anyone knows how this will afect
the low end performance.
Any thoughts...comments?
Thanks
Geno Hacker - Arizona 49 4x4 pu


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