anyone ever use E7's on a 351

[Bigstang1]

I want to put my 351 in this winter and was wondering if i can use my E7 heads that i upgraded the springs on and put new seals in. I know i will have to drill the holes for the head bolts cause they are bigger on the 351. i think E7's have a 64 cc chamber. anyone know what 351 heads have? its a 1990 351. i am concerned with what kind of compression and piston to valve issues im going to have. thanks

 

[R2D2]

you should be more worried about it running like a dog unless your not looking for any performance

 

[Bigstang1]

So your saying the stock 351 heads flow better than the e7's? I am planning on a 408 in the future but i want to get everything setup and in the car for the first time before a paint everything and make it look good. I may run that setup for a summer or two before building the motor. i am just trying to make the best possible setup from what i have for the time being.

 

[Mavrick]

E7 heads also came on stock 351's in van's etc. They won't make a lot of power, but they will get you by.

 

[Bigstang1]

Ok...so my springs should fit on the 351 heads and eliminate having to drill my 302 E7's. The 351 came from a nice running 1990 bronco.

 

[R2D2]

I understand but a bone stock E7 is asthematic on a 302 let alone a 3.50 stroke windsor with 50 inches more. Just my 2cents

 

[v8only]

everyone always dogs the e7 head, but we must remember that it was designed for a 5.8L motor before it was adapted to the mustang.

my bronco has the e7 heads, and is no dog. Don't expect much, but I wouldn't worry about it for the time being.

 

[Bigstang1]

are the cc's any different from a 351 e7 to a 302 e7?

 

[Boss 351]

I have a set of E6 heads from an 89 351W if you want *runs and hides from sbftech* lol

 

[Bigstang1]

Whats up with the E6 heads? Chamber size smaller bigger? Flow better. sorry im new to the 351 game

 

[Boss 351]

E6 are worse than E7's

 

[Bigstang1]

gotcha...man i feel dumb

 

[vristang]

I ran E7's with bigger springs on a 351w for a while.
Used the Lightning Lower, Comp Cams Upper, Comp cam.

It ran ok.
But heads are worth it on a 351w.

jason

 

[Modular2v]

Althought not the most practical head for a 351. . . they will work, so if its all you can afford then do it to it