Need advice on 331 build

foxstang · December 6th, 2008, 02:08 AM

Im building a 331 turbo motor and was wondering if I could get some input on what would be a good set of heads to run. Im planning on running about 6psi on the street and hopefully 14 or so at the track. This is the kit I was planning on running so if you have any opinions on it throw them in too if you could. Thanks

Dart Block

Pro-street 331 Probe Rotating Assembly
INCLUDES:
• Forged Steel Crankshaft
• Probe SRS Forged Pistons
• Race Rings
• Probe Forged 4340 Rods (H-beam)
• CL77 Bearings

White Thunder · December 6th, 2008, 02:26 AM

afr 185

1slo5.0 · December 6th, 2008, 07:26 AM

Originally Posted by White Thunder

afr 185

Why?

Racinjason81 · December 6th, 2008, 10:02 AM

why dont you just stickwith the edelbrocks?they are 170cc heads on the slightly smaller
side but a ton better than the stockers.you should ditch that ssi intake for something that will move more air like a holley systemax or trick flow r series,at least get the ssir upper intake.you will need to step up to at least 42lb injectors too.get rid of the flow impeders and install 3.31s-3.55 gears

White Thunder · December 6th, 2008, 12:34 PM

Originally Posted by Darrell

Why?

correction Trick Flow Twisted wedge

Brian@PAR · December 6th, 2008, 01:16 PM

RPM's too small
AFR185's too small

TW only if you bought the TW kit from probe wich I doubt since you already had inline heads.

I would suggest the high port. Ideally the CNC race version but that may be a bit too much for a street car even boosted. The 192cc runner of the street version does not show it's true potential.

If you don't like the special headers you have to use then an RHS215, AFR 205 (not convinced they are worth the money) or even a Vic JR.

You are best served with a large head and 200cc heads run just fine on a street 306 at 10:1 a 215 is no probelm on a 331.

What ever head you choose you should run a custom cam. Billet customs are 450 and worth every penny.

White Thunder · December 6th, 2008, 01:20 PM

im not the smartest guy on the bored but 205's sound to big to me......

JBIGBOOTSY · December 6th, 2008, 01:50 PM

I run a 210cc head on a 302.

93mustank · December 6th, 2008, 01:59 PM

Originally Posted by White Thunder

im not the smartest guy on the bored but 205's sound to big to me......

That is true

White Thunder · December 6th, 2008, 02:03 PM

dont knock me im here to learn asshole

foxstang · December 6th, 2008, 08:24 PM

No the motor in my sig is not the motor im building im helping a friend build one for him mustang. We were just trying to get some opinions on the build.

1slo5.0 · December 6th, 2008, 11:19 PM

Originally Posted by foxstang

Im building a 331 turbo motor and was wondering if I could get some input on what would be a good set of heads to run. Im planning on running about 6psi on the street and hopefully 14 or so at the track. This is the kit I was planning on running so if you have any opinions on it throw them in too if you could. Thanks

Dart Block

Pro-street 331 Probe Rotating Assembly
INCLUDES:
• Forged Steel Crankshaft
• Probe SRS Forged Pistons
• Race Rings
• Probe Forged 4340 Rods (H-beam)
• CL77 Bearings

How fast do you want to go and how much money do you have to spend? Why only 6psi on the street and 14psi at the track? Why not 14psi everywhere?

I know one thing, I wouldn't buy AFR anything...

1slo5.0 · December 6th, 2008, 11:22 PM

Originally Posted by White Thunder

im not the smartest guy on the bored but 205's sound to big to me......

Too big is a relative term. Too big why? If the engine can use it, its not too big. Small ports, small cams and small intakes make small power.

grnstang · December 7th, 2008, 12:52 AM

Originally Posted by Darrell

Too big is a relative term. Too big why? If the engine can use it, its not too big. Small ports, small cams and small intakes make small power.

exactly

TKOTLARZ · December 7th, 2008, 01:40 AM

Originally Posted by Darrell

Too big is a relative term. Too big why? If the engine can use it, its not too big. Small ports, small cams and small intakes make small power.

so big ports ,big cams,and big intakes make big power

White Thunder · December 7th, 2008, 02:49 AM

Originally Posted by Darrell

Too big is a relative term. Too big why? If the engine can use it, its not too big. Small ports, small cams and small intakes make small power.

i was really set on a set of afr 185's for a 347 build. i respect what you think.....so tell me why you wouldn't.

im thinking about a mild 347 turbo....maybe just a 302. i know i want a turbo....im just a turbo guy.

i would like to hear what you say...

TKOTLARZ · December 7th, 2008, 03:07 AM

Originally Posted by White Thunder

i was really set on a set of afr 185's for a 347 build. i respect what you think.....so tell me why you wouldn't.

im thinking about a mild 347 turbo....maybe just a 302. i know i want a turbo....im just a turbo guy.

i would like to hear what you say...

i would listen to him..he knows his shit..

White Thunder · December 7th, 2008, 03:14 AM

ive been around long enough to know that

TKOTLARZ · December 7th, 2008, 03:20 AM

lol i kno..i can see how many posts u have

White Thunder · December 7th, 2008, 03:23 AM

its sad i haven't learned more than i have....i have the worst memory in the world.....and i mean that

December 6th, 2008, 02:08 AM	#1
foxstang Regular Join Date: Feb 2007 Posts: 100 iTrader: 0 reviews	Need advice on 331 build Im building a 331 turbo motor and was wondering if I could get some input on what would be a good set of heads to run. Im planning on running about 6psi on the street and hopefully 14 or so at the track. This is the kit I was planning on running so if you have any opinions on it throw them in too if you could. Thanks Dart Block Pro-street 331 Probe Rotating Assembly INCLUDES: • Forged Steel Crankshaft • Probe SRS Forged Pistons • Race Rings • Probe Forged 4340 Rods (H-beam) • CL77 Bearings __________________ 89' 306 W/ Edelbrock performer 5.0 heads, BBK SSI intake, F-303 cam, 75mm MAF, 75mm TB, 30lb injectors, 255lph fuel pump, BBK afpr, BBK shorty headers, Off road X-Pipe, Flowbastards, and 3.73 gears.

December 6th, 2008, 10:02 AM	#4
Racinjason81 Hardcore Enthusiast Join Date: Feb 2007 Location: New jersey Posts: 1,559 iTrader: 0 reviews	why dont you just stickwith the edelbrocks?they are 170cc heads on the slightly smaller side but a ton better than the stockers.you should ditch that ssi intake for something that will move more air like a holley systemax or trick flow r series,at least get the ssir upper intake.you will need to step up to at least 42lb injectors too.get rid of the flow impeders and install 3.31s-3.55 gears __________________ Heres a real funny video youtube.com/watch?v=ojB7KkaR03I VTEC stands for Very Torqueless Economy Car Honda stands for Hold On Not Done Accelerating 1991 LX 5.0 H/B(T-70 turbo coming soon)

December 6th, 2008, 01:16 PM	#6
Brian@PAR Newbie Join Date: Nov 2008 Location: Phoenix AZ Posts: 25 iTrader: 0 reviews	RPM's too small AFR185's too small TW only if you bought the TW kit from probe wich I doubt since you already had inline heads. I would suggest the high port. Ideally the CNC race version but that may be a bit too much for a street car even boosted. The 192cc runner of the street version does not show it's true potential. If you don't like the special headers you have to use then an RHS215, AFR 205 (not convinced they are worth the money) or even a Vic JR. You are best served with a large head and 200cc heads run just fine on a street 306 at 10:1 a 215 is no probelm on a 331. What ever head you choose you should run a custom cam. Billet customs are 450 and worth every penny. __________________ PeteAndersonRacing

December 6th, 2008, 01:50 PM	#8
JBIGBOOTSY MM Fanatic 1990 LX hatch Join Date: Aug 2006 Location: Hobart Indiana Posts: 4,391 iTrader: 0 reviews	I run a 210cc head on a 302. __________________ Bolt-on Abraham Lincoln Log motor. With extra wiring.

December 6th, 2008, 08:24 PM	#11
foxstang Regular Join Date: Feb 2007 Posts: 100 iTrader: 0 reviews	No the motor in my sig is not the motor im building im helping a friend build one for him mustang. We were just trying to get some opinions on the build. __________________ 89' 306 W/ Edelbrock performer 5.0 heads, BBK SSI intake, F-303 cam, 75mm MAF, 75mm TB, 30lb injectors, 255lph fuel pump, BBK afpr, BBK shorty headers, Off road X-Pipe, Flowbastards, and 3.73 gears.

December 7th, 2008, 03:20 AM	#19
TKOTLARZ Hardcore Enthusiast 1994 GT Join Date: Nov 2007 Location: lake worth, Florida Posts: 1,002 iTrader: 0 reviews	lol i kno..i can see how many posts u have __________________ Cohagan Engineering, Inc.

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