Blown 331 Stroker(AFR 185's or 205's)????

mustangman9812 · Sep 23, 2009

Hello Guys,

I am building a 331 Stroker for my 89 Mustang LX. I building bottomend now and have done bought my topend except for the heads. I have been Beating my head against the wall and need you help with which AFR's i should get

Goals: 500-600 rwhp

What I Have So Far

Boss 302 Block
CoastHigh Probe Pro Street Engine Kits (14.2cc)
(Heads Dont Know Yet)
Custom Camshaft (After I Buy My Heads)
Trickflow Box-R Intake Manifold w/Accufab 90mm Throttle Body
Procharger D1SC Supercharger Kit (Intercooled)
60lb Injectors
Trickflow TFX Fuel Rail Kit
Flowtech Ceramic Coated Longtube Headers
Flowtech X-Pipe
SLP Loudmouth Catback (It my car and I like SLP so no Comments PLZ)
Anderson PMS w/ Laptop Tuning

If you see anything missing and such let me know.

Jaym14 · Sep 23, 2009

for your combo probably the 205's

mustangman9812 · Sep 23, 2009

Thanks that is what i was thinking. I know 205's are some big but i was scared the 185's would hold some power back

90lxcoupe · Sep 23, 2009

CNC ported 205 twisted wedge FTW

They flow better than AFR's and offer what an in-line cylinder head cant compete with, an efficient combustion chamber.

mustangman9812 · Sep 23, 2009

Thanks 90lxcoupe! Thing with my pistons is they have a pretty good dish so i can run any type of heads i want to, with that being said I am pretty set on a set of AFR's but i am not ruling out Trickflow yet. So thanks for you input i will keep that suggestion in mind

liljoe07 · Sep 23, 2009

Twisted Wedge.......Better valve placement and angle speaks for itself. You guys can bash me all you want. AFR's are decent heads. But they are a Suped up Stock head. Nothing fancy. Just aluminum, and larger ports, and valves.

mustangman9812 · Sep 23, 2009

Well 2 votes for Trickflows liljoe07 you recommend 205's in that also?

liljoe07 · Sep 23, 2009

mustangman9812 said:
Well 2 votes for Trickflows liljoe07 you recommend 205's in that also?

Trick Flow TW 190 Fast as Cast
Trick Flow TW 205 CNC

Both are Nice heads. And will do what your looking for.

You say Custom Cam, Why not look up Jay Allen @ CamshaftInnovations.com.

He does custom and is a Dealer For Trick Flow.

mustangman9812 · Sep 23, 2009

10-4 Thanks!

7upstang91 · Sep 23, 2009

205 AFR

BlownFiveLiter · Sep 23, 2009

If you look at Twisted Wedges, check into a set from Total Engine Airflow. They CNC port TW's and their work is known to be of good quality. It may possibly cost a bit more than buying the fast as cast heads, but the performance advantages will probably offset the cost a little.

mustangman9812 · Sep 23, 2009

7upstang91 you have great numbers for a small head, small psi blown car!

Jaym14 · Sep 23, 2009

I run the 185 CNC twisted wedge head on my 331 and I must say that they really are an excellent head. I would pick the 205 version over the afr 205 if it were me.

mustangman9812 · Sep 24, 2009

Well i guess i will get Trickflow 205's. I have been on here 5 years and what i have learned is you cant beat results.

Jaym14 · Sep 24, 2009

well good luck bro.. if I was ever going to start from scratch I'd go with virtually the same set up you are planning... your going to make some serious power.. its going to be a blast... good luck with it and get some pics/vids up of your build!

90lxcoupe · Sep 24, 2009

mustangman9812 said:
Well i guess i will get Trickflow 205's. I have been on here 5 years and what i have learned is you cant beat results.

good choice, its a very versatile head, works great on my 390rwhp motor and also is right at home making 900 rwhp.

If your going custom on the cam, dont order the heads with springs, cause chances are you'll be replacing them with ones that are reccomended by the cam grinder

mustangman9812 · Sep 24, 2009

Thanks A Bunch Guys!! I will start a thread shortly on the build.

Beasly B · Sep 24, 2009

I haven't been on here in a while, but this thread caught my eye, don't go any less than the 205's, I made decent power with my 185's but the time and effort I've got in the custom pushrods and the tuning and I'm not really happy with my power. Even the guys at AFR said the 185's is all you need, well my research and the hanging around the strip is bigger is better when dealing with boost, the more head and cam you have the more power you can make. I'm going to swap to a set of TFS'Rs next time, but I've got alot of things I need to do before making any more power, long story short, atleast go with some 205's. Oh I see my sig is way out of date, by like more than a year, short rundown 347 afr 185s super victor and an F1c procharger pushing 22lbs of boost.

mustangman9812 · Sep 24, 2009

Thanks! I talked to Gregg@TFS and we chatted for a few and i am deff deff buying Trickflow 205's. With the custom camshaft and the amount of boost 600rwhp shouldnt be a problem, also 205's give me the ability to grow with more boost, ect later.

liljoe07 · Sep 24, 2009

Beasly B said:
well my research and the hanging around the strip is bigger is better when dealing with boost, the more head and cam you have the more power you can make.

:Teh-Win:

And thats what its all about Folks.......

Cant wait to get my Junk with " Too Large" heads to the Track.

Problem with most guys that run Large heads on small CID engines( N/A applications), is they Cam it much. They Figure large heads = Big Cam. To do this, you need more Cubes. My Custom Cam has some abnormal Specs. And would seem funny to some guys. Boost, you can get away with more.

Blown 331 Stroker(AFR 185's or 205's)????

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