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My Combo so far, except intake manifold-prob. use a 6.1 #2481260
04/11/18 08:47 PM
04/11/18 08:47 PM
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State College, Pennsylvania
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fatman Offline OP
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This is going in my 70 CUDA, which will see a fair amount of test n tune track time. Early 5.7 block, Molnar crank and rods 4.08, 6.125. Wiseco 3.94 piston with 0.866 pin, -5cc dish. Lightly ported Eagle heads, 11.1 compression. Howards 222/233 .582 .582, 114 cam. TTI 1.75 6.1 headers, 3 inch X pipe exhaust. 727, 3.73 Dana. MS3 FI. Not much data out there on the Edelbrock intake, but Dave Weber said on a Facebook post he doesn't like the PCV design and issues it creates. Kinda frustrating because there isn't much else I can do to find power. Last decision will be throttle body size and type, that's about it. Opinions welcome ! -scott

Re: My Combo so far, except intake manifold-prob. use a 6.1 [Re: fatman] #2481496
04/12/18 09:48 AM
04/12/18 09:48 AM
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Bowling Green, KY
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BlakDak71 Offline
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6.1 will be more than enough for what you're doing.

If you wanted to get fancy you could use a 6.4L SRT active intake to give it a little more grunt down low.

Re: My Combo so far, except intake manifold-prob. use a 6.1 [Re: fatman] #2481515
04/12/18 10:36 AM
04/12/18 10:36 AM
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Posts: 1,400
Trumbauersville PA
ric3xrt Offline
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Good combo, 6.1 Intake will be fine, Curious question for you, do you have sonic #s after the 4.08 Bore? the 05 5.7 I had bored out to 4.09 cracked #1 thrust side after 5k mile(street miles).


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Re: My Combo so far, except intake manifold-prob. use a 6.1 [Re: ric3xrt] #2481528
04/12/18 11:06 AM
04/12/18 11:06 AM
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RTSE4ME Offline
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MD
I think the 4.08 he is referring to is the stroke. Molnar makes 4.08 crank. 3.94 is the bore

Re: My Combo so far, except intake manifold-prob. use a 6.1 [Re: fatman] #2481531
04/12/18 11:15 AM
04/12/18 11:15 AM
Joined: Jan 2006
Posts: 1,400
Trumbauersville PA
ric3xrt Offline
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Just reread it and I did skip over "Wiseco 3.94 piston with 0.866 pin, -5cc dish" for some reason I thought his stroke was 3.795 with a 4.08 piston.

Re: My Combo so far, except intake manifold-prob. use a 6.1 [Re: fatman] #2481674
04/12/18 03:13 PM
04/12/18 03:13 PM
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Kalispell Mt.
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HotRodDave Offline
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sounds almost exactly like an 392 apache, very similar compression, cam, heads, CID, have you looked at a low miles take out engine?

The apache intake is better flowing out of the box plus it is plastic so light weight and keeps the air and fuel way cooler and as mentioned has the variable intake runner length. Last but not least they are cheaper. The only advantage of the 6.1 is it can be ported but its gonna need quite a bit to beat the apache intake and still going to put a ton o heat in the intake air. Another one thats better is the eagle truck intake and they are cheaper yet.


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Re: My Combo so far, except intake manifold-prob. use a 6.1 [Re: fatman] #2481720
04/12/18 04:39 PM
04/12/18 04:39 PM
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Rust Belt, SW PA
Silver70 Offline
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I have an eagle truck intake, the active part on the back is missing though... but would sell it cheap if you need one.


68 Road Runner, 69 Belvedere, 71 Challenger Vert
340 barracuda, 01 Ram CTD, 95 Ram, 04 Ram, 85 Daytona turbo Z
66 GTO, 06 Magnum RT AWD. 07 Ram CTD, 07 Ram
Re: My Combo so far, except intake manifold-prob. use a 6.1 [Re: Silver70] #2481816
04/12/18 08:34 PM
04/12/18 08:34 PM
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State College, Pennsylvania
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fatman Offline OP
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Thanks all, couple of questions. Wouldn't a truck intake horizontal throttle opening present a height challenge connecting a intake tube/air filter ? Is there comparison data available for 6.1 vs. 6.4 car vs. 5.7 truck intakes ? Thanks again!

Re: My Combo so far, except intake manifold-prob. use a 6.1 [Re: ric3xrt] #2482267
04/13/18 07:05 PM
04/13/18 07:05 PM
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Taxes & Virus's R-US, NY
Dragula Offline
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I might have gone with more compression....What fuel do you have available at the pump?


'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk
Re: My Combo so far, except intake manifold-prob. use a 6.1 [Re: ric3xrt] #2482291
04/13/18 07:58 PM
04/13/18 07:58 PM
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Renton Washington
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Triple Threat Offline
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Originally Posted By ric3xrt
Good combo, 6.1 Intake will be fine, Curious question for you, do you have sonic #s after the 4.08 Bore? the 05 5.7 I had bored out to 4.09 cracked #1 thrust side after 5k mile(street miles).



Did you sonic check yours? My 04 5.7 block has a min thickness of .176 @ 3.93 bore. I wouldn't want to take it to 4.090, but 4.055 would probably be alright to still be over .100 everywhere.


-Dustin
67 Dart, 9 second, 392" G3 Hemi
68 Barracuda 340 F/SA
Re: My Combo so far, except intake manifold-prob. use a 6.1 [Re: Triple Threat] #2482454
04/14/18 09:43 AM
04/14/18 09:43 AM
Joined: Jan 2006
Posts: 1,400
Trumbauersville PA
ric3xrt Offline
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Trumbauersville PA
Originally Posted By Triple Threat
Originally Posted By ric3xrt
Good combo, 6.1 Intake will be fine, Curious question for you, do you have sonic #s after the 4.08 Bore? the 05 5.7 I had bored out to 4.09 cracked #1 thrust side after 5k mile(street miles).



Did you sonic check yours? My 04 5.7 block has a min thickness of .176 @ 3.93 bore. I wouldn't want to take it to 4.090, but 4.055 would probably be alright to still be over .100 everywhere.


Block check @ 3.917 had .207 before bore .120 after Bore in that spot,(middle depth #1)
Thinnest spot on that block after bore was #7 non Thrust @.101 middle depth

Re: My Combo so far, except intake manifold-prob. use a 6.1 [Re: fatman] #2482540
04/14/18 12:52 PM
04/14/18 12:52 PM
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Ontario Canada
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MattW Offline
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Originally Posted By fatman
This is going in my 70 CUDA, which will see a fair amount of test n tune track time. Early 5.7 block, Molnar crank and rods 4.08, 6.125. Wiseco 3.94 piston with 0.866 pin, -5cc dish. Lightly ported Eagle heads, 11.1 compression. Howards 222/233 .582 .582, 114 cam. TTI 1.75 6.1 headers, 3 inch X pipe exhaust. 727, 3.73 Dana. MS3 FI. Not much data out there on the Edelbrock intake, but Dave Weber said on a Facebook post he doesn't like the PCV design and issues it creates. Kinda frustrating because there isn't much else I can do to find power. Last decision will be throttle body size and type, that's about it. Opinions welcome ! -scott


Good combo except your 6.1 headers.
Factory headers are good but long tube are better.
Matt

Re: My Combo so far, except intake manifold-prob. use a 6.1 [Re: MattW] #2482637
04/14/18 04:28 PM
04/14/18 04:28 PM
Joined: Feb 2005
Posts: 196
State College, Pennsylvania
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fatman Offline OP
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The headers are TTI long tube.







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