113 porting ???'s
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
That depends in how bad the aftermarket heads you are referring to are. The 113 heads can be improved considerably. They cannot be opened to 227 cc intake ports and they can't be converted to be 18° heads. The answer to your question is Yes, they can. And No, they can't.
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Team Owner
Joined: Sep 2001
Posts: 62,128
Likes: 1,727
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
There are flow numbers on my site if you want to look at them, but no, they do not outflow the AFR 195. (190 is no longer made by AFR)
Intermediate
Joined: Sep 2003
Posts: 41
Likes: 0
From: Sterling VA
Flow numbers are way over rated although important in different applications & for measuring improvement. Your 113's will give you very good power. Bigger is not always better especially on a street machine.
Let me know if I can be of service.
Let me know if I can be of service.
Team Owner
Joined: Sep 2002
Posts: 22,209
Likes: 12
From: OBAMA IS HITLER
TPIS in collaboration with AFR offers 187cc sets for L98 and LT1.
with a cam, and complete intake changeout and LT headers on a 350/355cid, these work out great. i wouldn't go larger intake runners than 190cc on a stock block, but thats my semi-informed opinion. as was stated earlier, AFR doesn't offer 190cc anymore (i think they stopped about 2 years ago), you might might a good set used though. otherwise, check into TPIS/AFR at the TPIS site, and give them a call.
i would sell your 113's to recoup some cost. asking price for a pair in very decent shape in the $400-$500 range.
with a cam, and complete intake changeout and LT headers on a 350/355cid, these work out great. i wouldn't go larger intake runners than 190cc on a stock block, but thats my semi-informed opinion. as was stated earlier, AFR doesn't offer 190cc anymore (i think they stopped about 2 years ago), you might might a good set used though. otherwise, check into TPIS/AFR at the TPIS site, and give them a call.
i would sell your 113's to recoup some cost. asking price for a pair in very decent shape in the $400-$500 range.
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Originally Posted by jack the stripper
damn! and a new set of AFR 195's go for how much?
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Le Mans Master
Joined: Feb 2005
Posts: 5,146
Likes: 3
From: The Motor City
Originally Posted by Hot Rod 90
TPIS in collaboration with AFR offers 187cc sets for L98 and LT1.
with a cam, and complete intake changeout and LT headers on a 350/355cid, these work out great. i wouldn't go larger intake runners than 190cc on a stock block, but thats my semi-informed opinion. as was stated earlier, AFR doesn't offer 190cc anymore (i think they stopped about 2 years ago), you might might a good set used though. otherwise, check into TPIS/AFR at the TPIS site, and give them a call.
i would sell your 113's to recoup some cost. asking price for a pair in very decent shape in the $400-$500 range.
with a cam, and complete intake changeout and LT headers on a 350/355cid, these work out great. i wouldn't go larger intake runners than 190cc on a stock block, but thats my semi-informed opinion. as was stated earlier, AFR doesn't offer 190cc anymore (i think they stopped about 2 years ago), you might might a good set used though. otherwise, check into TPIS/AFR at the TPIS site, and give them a call.
i would sell your 113's to recoup some cost. asking price for a pair in very decent shape in the $400-$500 range.
Thread Starter
Instructor
Joined: Feb 2005
Posts: 162
Likes: 0
From: jacksonville N.C.
so what am i looking at for a set of good used 195's? $1000-$1500? tha engine that i am buying from flatline already has ported 113's, but with the SR and long tubes i was just wondering if they would be enough.
Le Mans Master
Joined: Feb 2005
Posts: 5,146
Likes: 3
From: The Motor City
Originally Posted by jack the stripper
so what am i looking at for a set of good used 195's? $1000-$1500? tha engine that i am buying from flatline already has ported 113's, but with the SR and long tubes i was just wondering if they would be enough.
If flatline already has ported 113's set-up on it, I am not sure I understand why you want to change or spend extra. What was his set-up with the 113's, it is proabaly a good working set-up already/wcam etc..
Thread Starter
Instructor
Joined: Feb 2005
Posts: 162
Likes: 0
From: jacksonville N.C.
it has a zz9 cam and i will be running hooker ceramic super comps back to 2 big bullets. pipes will be at least 2.5", maybe even 3. havent decided on which mufflers yet, but 40 series are always good. unless anybody else has another suggestion. TIA
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,062
From: altered state
St. Jude Donor '05
If you are running duals I'd go 2.5", no bigger.
Have you considered the AFR 180 head? They will keep up with a SR and make killer low/mid-lift numbers. About $1300 from Jegs (or was it summit?). Your car would make some sick torque for a 350. With that cam I dont see where it could make full use of the 195 head.
Of course, a well ported 113 head would run very strong also. It wont keep up with the AFR but is still a decent street head. Problem is by the time you've paid for a quality valve job, bigger valves installed and a full port job you've spent almost the same money as the AFR. Dart makes a nice 180 head, I belive Brodix does too.
Have you considered the AFR 180 head? They will keep up with a SR and make killer low/mid-lift numbers. About $1300 from Jegs (or was it summit?). Your car would make some sick torque for a 350. With that cam I dont see where it could make full use of the 195 head.
Of course, a well ported 113 head would run very strong also. It wont keep up with the AFR but is still a decent street head. Problem is by the time you've paid for a quality valve job, bigger valves installed and a full port job you've spent almost the same money as the AFR. Dart makes a nice 180 head, I belive Brodix does too.
Thread Starter
Instructor
Joined: Feb 2005
Posts: 162
Likes: 0
From: jacksonville N.C.
im not worried about max hp (as HP is what you buy and TQ is what you drive). i was just wondering whether the ported heads on it would keep up with the engine. thanks for the advice on pipe diameter. is that to keep backpressure? what kind of mufflers should i run? who has what and how do they sound?
Drifting
Joined: May 2003
Posts: 1,979
Likes: 48
From: Lakeport CA
I don't have any flow numbers but here are some results for my work w/ a dremel & die grinder to my 113 heads. I only did minor clean up & port match on the intake side, exhaust I only took off casting marks & then polished them out. Ignore the flywheel on the printout, it is rear wheel readings...
Last edited by Trog; Dec 23, 2005 at 01:26 AM.
Racer
Joined: Oct 2005
Posts: 264
Likes: 1
From: La Grande Oregon
Originally Posted by G-Racer
Flow numbers are way over rated although important in different applications & for measuring improvement. Your 113's will give you very good power. Bigger is not always better especially on a street machine.
Let me know if I can be of service.
Let me know if I can be of service.
This is correct, having heads that flow say... a zillon cfm is great on paper...but if they only do it at 8000 rpm, and you drive at 5500 max, you have wasted your time and money. It's the same with runner size, bigger isn't always better, remember it's just an air pump, everything needs to be matched together to get the best results for your money.
