fordy's

i was looking up Pontiac 421 Super Duty and

they put out a set of heads for a year or two

with round ports as an improvement.

might be something to the round ports.

i know! big block chevy oval ports.

in the the real world if i see a 289 or later

version of it ( 302 ) with not too many

'smog modifications' i'll probably grab it!

Have A Nice Day!

 

Look up a Pontiac Ram Air V and see what you find.

 

le baron

here's wik

Pontiac V8 engine - Wikipedia, the free encyclopedia

you mean the 303?

i noticed it broke the 'RPM Barrier' without an

expensive trip to Hank The Crank and Arias rods and

light weight pistons!

i wonder if that could be done with a GM 350?

Update: i found GM version! the 302.

i think it's 283 crank or something like that.

revs up real good! makes horsepower too.

also i think that's what the guy was talking about

here, looking for 255 Ford rods.

Have A Nice Day!

 

le baron

found this looking at wik 'Ford Racing'.

Ford introduced its V-8 Flathead engine, bringing V-8 power into mass production with the slogan "Everyman’s power for the road, and Everyman’s power for racing"

have a another gem here in a moment.

here's Ford's RPM champion.

http://en.wikipedia.org/wiki/Ford_Boss_302_engine

it opens a can of worms though.

are Ford Racing crate engines 331 and 345 oversquare?

Have A Nice Day!

 

fordy's

just to clean up some old business.

the heads i'm probably thinking about

are Cleveland 351 4 bbl heads.

later

 

just had a set freshened up. and some mild port work. they flowed around 290cfm @ 28" once intake bolted on the flow dropped to around 275 cfm. exhaust around 195 on bench. I can see bigger numbers if needed pretty easy. what is your application and do you really need lots of flow or not. if you do a engine and the head flow is 300cfm @ 28" at 600 lift on a 600" engine and thats not a good combination. its all about the combination. my heads are going on a 408" engine and should do well.

 

can i ask, why do you want huge ports?

for maximum performance, you want the smallest ports that can supply enough flow to feed your max rpm/cam profile/displacement.

large ports dont make power, they make dyno numbers. total power under the curve is what wins races (or boils tires).

 

wyoming and zookie

just looking into all the Ford engines and

other makes.

it's surprising what people yank out and

then they just want it gone.

'one man's junk is another man's treasure.'

have a nice day!

 

found my heads at a chevy shop and bought them for $25.00 bucks. had a burn't valve and said they are ford crap. well i now have these crappy heads on a cobrajet headed 400 ford now and all rollered up with cool parts. one mans junk anothers treasure.

 

wyoming

i'm going to look around for some other

good Ford heads.

i think some of the 429-460 heads are

pretty good.

have fun

 

what are you trying to build?

 

Responses to his posts.

 

zookie

just learning more about Ford engines.

my Y Block sort of got me thinking about them.

none of that changes that Ford pulled the plug

HARD on high performance in '70-71.

some of the engines are kind of interesting.

later

 

insurance demands and fuel, it wasnt just ford pulling the plug!

 

those things are huge. the trick is to deport them and straighten them out, work the turndowns to valve. the head really needs a 500" or bigger engine to really appreciate those heads. the exhaust kinda suck but can be worked to make great power but compared to aftermarket heads the cost is about the same with less potential on the big end #s on hrspwr. i have a CJ block and lookin for some heads. or if a restoration kinda guys lookin to do a numbers matching application would let go. but not gonna give it up to a drag racer or mud holer type situation. 4 bolt main block and .030 bore all has been checked and ready to go. another chevy guy with a ford got to love them guys that don't know engines.