[supermachone]

for a 351 Cleveland? i plan on getting aftermarket 4v heads and i want the valves to be huge and i want the heads to flat out breathe fire lol

[MustangOne]

What RPM Range are you going to drive this in? 1500-3500? or you going to go 3500-6500?
If you go with bigger heads than 351C 2v head you need to raise the RPM range up.

Just have to keep in mind what is the main point of this car. Driving or Racing

[supermachone]

i want it streetable, but mean as well, right now i cruise on the highway i 3K and it shifts a little over 4k when i goose it, how do i safely raise that? i notice my tach goes up to 8 but the needle has never touched 5

[MustangOne]

Do you know any specs on your motor?

Like mine is a
10.2/1
280/280 .512 LC 110
3:55 Locker Rear end
Air Gap Intake.
MSD W/6AL
750 Dual Line Holly

This way we can try to tune you better, Than just saying you need heads.

[supermachone]

yeah maybe i can get a little more out of what i have first, this is all the info i could come up with, the stock specs should be right, but a lot of the sites i ran in to said different things so i dunno lol (thanks for the help btw!)

351 cleveland H Code (2 barrel motor)
8.6:1
4.00" X 3.50"
258/266
i think the rear end is 3.25 open diff.

Edelbrock 600 P series 4 barrel carb
dual point distributor

the motor is stock except for the carb and dual point distributor

[MustangOne]

The first thing that to go fast is go with a 700/750 CFM Holly carb.

The Second thing be a New Cam.

The Third is a Rebuild.

New Heads will not solve your power woes.

The carb is the quikest to get more now. Good Luck

[460brevill]

carb,cam,headers,rear.

[Vinyl66]

too bad you don't have a windsor i want to know how those new edelbrock RPM XT heads work

[Kobra Killer]

700 CFM might be overkill for 2V heads under 6500 RPM.
I assume you have the Performer intake to go with the carb.
Get a cam-lifter-spring kit like Comp Cams 268H or 270H
Then get headers & 2 1/2" dual exhaust

[supermachone]

yes i do have the matching 4v intake, made quite a difference!

and i probably wont upgrade the carb for awhile

but when i rebuild the motor i wanna build a streetable beast, and the 2v heads are gonna go...i love the fact its a cleveland but i hate the fact its from 72 due to the power decrease, sooo pretty much anything stock/restrictive is gonna go

[MustangOne]

Originally Posted by supermachone yes i do have the matching 4v intake, made quite a difference! and i probably wont upgrade the carb for awhile but when i rebuild the motor i wanna build a streetable beast, and the 2v heads are gonna go...i love the fact its a cleveland but i hate the fact its from 72 due to the power decrease, sooo pretty much anything stock/restrictive is gonna go

I have a 351C 2V head Motor with Holly 750 Dual Line
280/280 .512 Lift LC 110
9.5:1
And it is a Beast.

If you just Upgraded the Cam



This high torque cams work very well on the street. Made for use with engines having a 9:1 or less compression ratio. They can be used in conjunction with most stock components.

If you want Performance a 600 Edelbrock Carb is not the way to go.
Edelbrock Start good but do not performe good.

The Holly 700/750 Will Make a Huge Difrance. Trust me.

Those 2 Things will make a big difrance.

[Kobra Killer]

If you get the 4V heads you want the closed chamber type.
The open chamber ones detonation problems at higher compression ratios.
The stock Ford valve train is the weakest link in a Cleveland.
Get them machined for 7/16 rocker studs & and hardened seats.
Use roller rockers and stainless valves.
4V heads like a dual grind cam like Comp's XE274H.
Any bigger than that and you will need a Torker (Strip Dominator) intake & 750cfm carb.
In the interm, you can get 4V headers & they will work with the 2V heads.