[shawn embre]

OK I got this engine out of a barn it was sitting an an 8o ltd what potential does this engine have for my 66 Mustang what can I do to this engine to acheive 400+ HP all info is greatly appreciated also my brother tore this engine down to the bear block so if you can tell me what to do from there thanks.

[mustanghelper]

http://www.mre-books.com/biginch/biginch4.html
http://www.cardomain.com/ride/2591960

how much are you going to spend on it?

[not2brite]

A 400 horse 351 is not difficult. Good heads, intake and a moderate cam will provide 400 HP. Edelbrock has one in panel truck. They put on Performer RPM 2.02 heads, Performer RPM cam and intake, and a 750 Edelbrock carb. The engine dyno'd at 409 HP.

If you have a manual trans make sure the 80 block has the boss and machining for the clutch pivot. Ford changed to hydraulic clutches at a some point, eliminated the pivot from 351 block.

[shawn embre]

were do I look for that change on the block

[Sapphire Shelby]

As you stand facing the front of the block you need to look on the right hand side, below the last cylinder. You should see a threaded hole where the clutch pivot mounts into the side of the block. I don't believe that Ford quit using this pivot until 82 or there abouts so your block should have it. Of course I have been wrong before though. Hope this helps.

[5.0 in a 66]

You can hit 400hp no problem with a good set of heads, 10.5:1, a good cam, PerfromerRPM intake, and headers. I'm not the worlds biggest fan of Edelbrock's heads, but IMO their cam is a piece of $h!t compared to what you can get today in the 21st century.

I'd put on a set of trickflows or AFR165s, 10.5:1 compression, and a Lunati 61003 cam. Use low tension rings and a crank scraper for a "free" 20hp and a good set of headers and I'd figure on 470hp. We were going to build a 351W like that for my buddy's F250 before he got a 460, and from what I could find, people were getting almost 480hp out of a motor like that.

[shawn embre]

Awesome Ill defenently build this motor but with that kind of power and torque will have to upgrade the rigity "not sure if thats a word" but stiffen the car from twisting thinks for info.

[easternmgmt]

i just purchased a 1970 ford ltd with a 351 windsor in it and I am trying to find out what is the biggest cam i can use without changing the lifters or would it be better to change them and where would i get the kit , i couldnt find it under $400 any suggestions ?