Heads for my build - Ford Mustang Forums : Corral.net Mustang Forum
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post #1 of 27 Old 02-16-2017, 02:15 PM Thread Starter
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Heads for my build

I'm in the process of building a 351w for my 94 Mustang. I'm looking for a set of good head that will work with my pistons. My build so far is a '70 351w block, stock crank and rods, with TRW L2446F40 pistons. What heads will work. Can I run heads with 2.02 valves?

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post #2 of 27 Old 02-16-2017, 02:37 PM
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Without knowing much about your project, a set of TFS TW 190 11R heads as a minimum.






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post #3 of 27 Old 02-16-2017, 02:57 PM Thread Starter
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Well I'm not going to build a drag car so I don't need the biggest best of anything. I just want a good set of heads that would work with my pistons. Something that would give me good power with the option of maybe boosting it later. For the rest of my build I'm going to build it around the heads. If there are any other info you need just ask.
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post #4 of 27 Old 02-16-2017, 03:05 PM
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OK, so the real question is how much money do you want to spend?

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post #5 of 27 Old 02-16-2017, 03:12 PM Thread Starter
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I like to keep it around $1000, I don't mind buying used. I'm not looking to build a beast or anything just something to play with. My main concern is the piston to valve clearance. I've heard that with theses pistons I couldn't run the bigger valves.
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post #6 of 27 Old 02-16-2017, 03:36 PM
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OK so new chinese or used name brand. Both pose risks

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post #7 of 27 Old 02-16-2017, 03:46 PM Thread Starter
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I don't want Chinese stuff so I guess used brand name. I'm not set on the $1000 mark. But I don't want to spend $2000 either. I just want a good set that will work.
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post #8 of 27 Old 02-16-2017, 03:55 PM
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Keep an eye on the classifieds here, people are constantly upgrading/changing there builds and there are always good deals to be found.
I have bought three different sets of heads form here and all have worked out well.
Currently I run a pair of FTI prepped RHS200 heads on my 393w, got them here for a great deal.
In your case something used in the 180-225cc range can usually be had for well under 2k.
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post #9 of 27 Old 02-16-2017, 04:20 PM Thread Starter
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OK this thread turning more to money than what I was asking. Maybe it's my fault so let's try this again.
Can you run bigger than 1.94 valves using the TRW L2446F40 pistons without pistons to valve clearance issues?
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post #10 of 27 Old 02-16-2017, 04:25 PM
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Quote:
Originally Posted by 94Mustang_Phil View Post
OK this thread turning more to money than what I was asking. Maybe it's my fault so let's try this again.
Can you run bigger than 1.94 valves using the TRW L2446F40 pistons without pistons to valve clearance issues?
Yes, you can, run a 19011R head, it will cost you, but you will receive quality. It should be about what you actually get for your money. Within reason, I get it.


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post #11 of 27 Old 02-16-2017, 09:07 PM
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Save your pennies. I've been sitting on these for over a year now.. Nothing is cheap when you're building a motor.

I once read in an engine builders book where it said: add up everything you think you need to build your motor. Then take that price and DOUBLE IT.. That's what it will actually cost...









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post #12 of 27 Old 02-17-2017, 12:23 AM
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Don't want to invest over a grand in the heads?!! Get some junk yard heads. GT-40....GT-40P...351 stocker heads! Cheap and will work with your pistons.
Said you weren't gonna race it!?!
The valves are small but so is the chambers!! Small chambers=higher CR! That will yield more power than big ports and valves and stock-ish cam with low CR.
Tell'in ye boyz............tight LSA is the key to good street power!! Specially with high-er CR.
9.5/10.5:1 with a cam with 112LSA (or longer) and you will be fighting spark knock/death rattles forever. High octane or not! Plus you will need to have the timing dialed back so far your "hot-rod" will be sluuuuugggish.
Any of the above heads and don't be scared to put a healthy camshaft in it.
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post #13 of 27 Old 02-17-2017, 07:27 AM
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Just as an example, took me 5min. to find these on the classifieds.
BBK SSI intake, Roush heads, AFR heads, Dart pro1 heads
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post #14 of 27 Old 02-17-2017, 07:34 AM
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Originally Posted by 6sally6 View Post
Don't want to invest over a grand in the heads?!! Get some junk yard heads. GT-40....GT-40P...351 stocker heads! Cheap and will work with your pistons.
Said you weren't gonna race it!?!
The valves are small but so is the chambers!! Small chambers=higher CR! That will yield more power than big ports and valves and stock-ish cam with low CR.
Tell'in ye boyz............tight LSA is the key to good street power!! Specially with high-er CR.
9.5/10.5:1 with a cam with 112LSA (or longer) and you will be fighting spark knock/death rattles forever. High octane or not! Plus you will need to have the timing dialed back so far your "hot-rod" will be sluuuuugggish.
Any of the above heads and don't be scared to put a healthy camshaft in it.
6sally6
huh?



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"Haters gonna hate 'cause they just can't replicate."
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post #15 of 27 Old 02-17-2017, 09:43 AM
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Double huh

1982 Ford Fairmont Futura H/C/I, fuel injected and turbocharged 10.67@128
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post #16 of 27 Old 02-17-2017, 11:46 AM
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The original Systemax II cam had a lobe Sep of 107. I ran it but the only thing it was good for on a stock computer was full throttle. Low speed drivability sucked as it bucked like a bronco in 3rd at 25 mph and so did your gas mileage A wider lobe Sep is more forgiving with a flatter torque across the rev range.

Technical Specs & Information
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post #17 of 27 Old 02-17-2017, 11:53 AM
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Lobe separation angle is a "resultant" of timing events.

Nothing more, nothing less.

Designing around LSA is doing it backwards.




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"Haters gonna hate 'cause they just can't replicate."
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post #18 of 27 Old 02-17-2017, 12:16 PM
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Where is captain B cam when you need him
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post #19 of 27 Old 02-17-2017, 12:40 PM
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Lol. . The B Cam can solve world hunger..
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post #20 of 27 Old 02-17-2017, 12:58 PM
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B303 does solve a lot of problems...
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post #21 of 27 Old 02-17-2017, 01:07 PM
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Edelbrock e street heads with correct springs for hydraulic roller.
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post #22 of 27 Old 02-18-2017, 02:36 AM
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post #23 of 27 Old 02-21-2017, 12:36 AM
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Quote:
Originally Posted by Ed Curtis View Post
huh?

Said he "didn't want to spring for Trick Flow heads"...wasn't interested in racing it.....what other option is left?!
Stock 351W heads or GT-40 heads!?
Lotta folks make small heads work.....kinda OK on a build with enough camshaft to let in maximum mixture...and push out the burned!
He's leaving plenty of power on the table but.....sounds like it not a concern enough to go with decent breathing heads or "Chinese"ones.
May boost it later statement doesn't really "fit" with I don't want Chi-com or Trick heads though!?!
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post #24 of 27 Old 02-21-2017, 06:47 AM Thread Starter
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Never said I didn't want Trick Flow heads. I said I didn't want to spend $2000 for a set. Read before you make a statement.
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post #25 of 27 Old 02-21-2017, 06:03 PM
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Quote:
Originally Posted by 94Mustang_Phil View Post
Never said I didn't want Trick Flow heads. I said I didn't want to spend $2000 for a set. Read before you make a statement.
Ohhhhhhh.snippy!!!!!

Posting on boards is just like texting. If whoever is on the receiving end is cranky......then ever post/text usually results in a cranky reply!
Get over it, pal......I was only trying to help.
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post #26 of 27 Old 02-27-2017, 01:37 AM
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Man spend some dough and get ya some good heads.You seemed to have worked hard on that engine.Splurge a little.Edelbrock,Trickflow etc. make good stuff.Hell ya only live once!
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post #27 of 27 Old 02-27-2017, 06:40 AM
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Check your machine shop too.. I picked up a set of Edelbrock 60259 perfomer RPM's used but he just finished rebuilding them and shaved 11 thousandths off them for $600. Just an idea. I used them for 10 years having them gone through twice throughout those years. Just sold them on a complete motor.. Sold the long block for $1200 with less than a 100 miles one the rebuild. There are deals to be had you just have to have patients. One thing I'm terrible about... I'm actually looking for something similar to you. Just have not decided 357 or 408.
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