gator72106

I have some questions about a 408 stroker, I currently have a 302 in my street/strip truck, 65 f100 and I am thinking of building a 408 for it.

1. will 302 headers fit on a 351w?

2. Will a 351w mount to the 302 motor mount perches?

3. what year ranges of 351's are the best to stroke and why.

My plan is to use the scat kit all forged with h-beams, aftermarket heads (not sure wich yet), and an intake and cam to match.

What kind of numbers are these 408's putting out, with no power adders?
I would be happy with 500ish now, and mabye bump it up with nitrous later.
Thanks Galen F.

 

forthman

The 69-73 yrs are considered the best yrs for blocks.
I have a 393 stroker ina 94 roller block that is doing fine.
A 408 should get 500 hp no problem.
The 351w will bolt right into the 302 motor mounts.
They 302 headers will fit but migh tbe a bit small for a 408.

__________________
1966 Stang Coupe Org. 6 cyl. 351w,Sealed Power Hypers, ARP bolts,Total Seal rings,Eagle H-beams rods,Balanced,Hedman long tubes, Pro Comp 2.05/1.60 Heads, Shaft roller Rockers, Victor Jr intake, Holley 750 DP, Ed Nix Custom .600/.600 254/258 @.050 Solid Cam, Crane solid roller lifters,Richmond 4.11, Strange mini spool, Modified C4, 3500 stall, Redneck Transbrake, B&M Hammer shifter, Shelby lowered, Pro Comp 6Al system. Mickey Thompson 275/50 Et Street Drag radials.

dbiscayne

It will bolt up to the 302 mounts, but they do sell specific 351W mounts that are slightly thinner than the 302 mounts to compensate for the 351's taller height.
Headers will bolt up to but will probably be a choke point on a 408, definitely don't go smaller than 1 5/8" primaries and 1 3/4" would be better if you can find them.

allfords

-JR

__________________
1985 Mercury Capri Cobra... Fast
1984 F250 4x4 DIESEL... Slow
1966 Mustang Convertible... Restored
1965 Mustang Fastback... Work in Progress

gator72106

Thanks for all the help, youre rite about the headers, mine are 1.5" and would choke a 408.

frdnut

The headers likely wouldn't work anyway due to the 351s taller deck hieght..Althought they will bolt to the engine they will likely make contact with something in the engine bay or the floorboards...If you are only looking to make close to 500hp any year block should be fine...Spend your money on good heads and you can make some very serious horsepower with these stroker windsors.I have the scat 408 kit with a vic jr top end and it works very well.

__________________

1968 mustang 408W Hybrid..Burns gas and rubber!