347 build on a D4DE block - Thoughts and Advice

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2Blue2

will be trying this sex one when I can find it
Mar 5, 2019
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Like seeing the body on the rotisserie and all the fun new parts.

Carry On!
 
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bnero42

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Filler primer and metal work started!
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2Blue2

will be trying this sex one when I can find it
Mar 5, 2019
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She's on the frame machine and looking good . Did she need a little pull?
 
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bnero42

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Hi bnero42,
I contact Summitracing and they offer my this kit: https://www.summitracing.com/parts/esp-b16422la030/make/ford, it is for two valves.
Your kit is for four valves right? (https://www.summitracing.com/parts/sca-1-94165)
If you install 4 valves cylinder heads, are you going to got more HP? Or what is the reason?
Where did you got your AFR 185 for 200 USD? It is used?
TIA
If I said 200$ I meant 2k - and
Hi bnero42,
I contact Summitracing and they offer my this kit: https://www.summitracing.com/parts/esp-b16422la030/make/ford, it is for two valves.
Your kit is for four valves right? (https://www.summitracing.com/parts/sca-1-94165)
If you install 4 valves cylinder heads, are you going to got more HP? Or what is the reason?
Where did you got your AFR 185 for 200 USD? It is used?
TIA
If I said 200$ I meant 2k - and my pistons have reliefs for 2 valves as are my AFR’s
 

CrisNavarro

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Hi bnero42,
thank you for your answer. 2000 usd sound like I found in internet. Do you know maybe another cheap option, GT40 or GT40p will be a good idea? GT40p are easy to find here and around 250 usd.
Ok then you have reliefs for 2 valves pistons, but in the description from your summitracing link said:
Piston Style: Flat top, with four valve reliefs .
 

LILCBRA

I wish I didn't have all of these balls in the air
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Hi bnero42,
thank you for your answer. 2000 usd sound like I found in internet. Do you know maybe another cheap option, GT40 or GT40p will be a good idea? GT40p are easy to find here and around 250 usd.
Ok then you have reliefs for 2 valves pistons, but in the description from your summitracing link said:
Piston Style: Flat top, with four valve reliefs .


Flat top pistons with 4 valve reliefs mean that they can be installed in either orientation or side in the engine. Some pistons, domed pistons for example, can only be installed in one orientation. That's what the "4 valve reliefs" in the description means.

37_20.jpg
 

CrisNavarro

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Flat top pistons with 4 valve reliefs mean that they can be installed in either orientation or side in the engine. Some pistons, domed pistons for example, can only be installed in one orientation. That's what the "4 valve reliefs" in the description means.

37_20.jpg
Thank you!
 

CrisNavarro

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Apr 29, 2020
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Flat top pistons with 4 valve reliefs mean that they can be installed in either orientation or side in the engine. Some pistons, domed pistons for example, can only be installed in one orientation. That's what the "4 valve reliefs" in the description means.

37_20.jpg
And do you have any suggestion of other more cheap cylinder heads that can be used for this 347? Maybe this GT40p?
I bought a Tremec T5 from Mustang T5 and a rear end 8.8" posi with a 3.73.
 

LILCBRA

I wish I didn't have all of these balls in the air
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When you say cheap, what do you mean? How much do you want to spend? I don't think GT40P heads will do a 347 justice, so I don't think you'll get along well spending just $250 USD.
 

CrisNavarro

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When you say cheap, what do you mean? How much do you want to spend? I don't think GT40P heads will do a 347 justice, so I don't think you'll get along well spending just $250 USD.
Cheap I mean maybe something from second hand, that I can use. I live in Mexico and I found for 250 usd a GT40p, but you have to rework it.
 

LILCBRA

I wish I didn't have all of these balls in the air
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There aren't many options under $1000 USD. Your best bet is to keep an eye on your local classified ads, Facebook Marketplace, Craigslist, etc. You can try other sites like racingjunk as well, you might get lucky. But doing so you'll have to research whatever you find to see if it would even be worth buying for your application.
 

CrisNavarro

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Apr 29, 2020
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There aren't many options under $1000 USD. Your best bet is to keep an eye on your local classified ads, Facebook Marketplace, Craigslist, etc. You can try other sites like racingjunk as well, you might get lucky. But doing so you'll have to research whatever you find to see if it would even be worth buying for your application.
Tnahk you LILCBRA,
do you know another option extra besides the GT40p?
 

LILCBRA

I wish I didn't have all of these balls in the air
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For the money and what they advertise for flow numbers and such, these don't look too bad on paper. Someone is using them in a build in the Fox section but I haven't heard how they're working for him yet.


There is also this set, but I'm not sure how well they'd support a 347.


Flotek has bigger heads, but those are their lowest priced. The bigger ones would probably work a lot better:


That's just what I can think of off the top of my head for low price points. :shrug:
 
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