347, 331 or 306 is the ?

5ohCOUPE · 03-01-2003, 09:06 PM

Here is my delema, I want to build another motor for my everyday driver. It runs well now but I want MORE.

I was wondering what would be better. Putting on my set of unported Windsor Jr's on a stroker 347, 331 or putting a set of ALOT better heads on a 302 or 306. This will be a fuel injected motor and looking for a trap speed of 113+. Im at 109 trap speed with the mods I have now. Any ideas???? MONEY is also kinda an issue here. But it alwas is.

Shaggy · 03-01-2003, 10:39 PM

My personal opinion there is no replacement for displacement.... If all you are looking for is another 3 MPH though labor wisse it would be easier to put on a set of twisted wedges or afr's.

NOSty347 · 03-03-2003, 04:00 PM

I have a 347 in my daily driver and i love it.
My car traps about 120 on motor and it has not been tuned yet.
Can't wait til i get new 1 3/4 bassani, header full 3in exhuast and some tuning looking for 123+ on motor

techsan · 03-03-2003, 05:14 PM

The 331 should give you better life for a daily driver application, plus the price is a little bit nicer. If the heads have a good port job it may be worth getting the extra displacement, and still have an engine that will last more than 20,000 miles.

5ohCOUPE · 03-03-2003, 06:19 PM

OK, I think Ive decided on what im gonna do. Im gonna build a 306 and put a set of AFR 165's and an Edelbrock performer RPM intake on it. Also im gonna change my cam from the lunati I have to the "F" cam. That combo should get me to where I want for now. I hope it gets me at least a 113+ trap speed on motor. If not, then bottle here I come again.

302 LX Eric · 03-03-2003, 07:12 PM

Quote:

Originally posted by techsan
The 331 should give you better life for a daily driver application, plus the price is a little bit nicer. If the heads have a good port job it may be worth getting the extra displacement, and still have an engine that will last more than 20,000 miles.

When I purchased my 331 kit from DSS, there was no price difference between the 331 and the 347. Plus, you have to clearance the block with both the 331 and 347, so there is no savings there. Just an FYI.

E

03-01-2003, 09:06 PM	#1
5ohCOUPE Registered Member Join Date: Sep 2001 Location: ORANGE PARK FL. USA Posts: 208	347, 331 or 306 is the ? Here is my delema, I want to build another motor for my everyday driver. It runs well now but I want MORE. I was wondering what would be better. Putting on my set of unported Windsor Jr's on a stroker 347, 331 or putting a set of ALOT better heads on a 302 or 306. This will be a fuel injected motor and looking for a trap speed of 113+. Im at 109 trap speed with the mods I have now. Any ideas???? MONEY is also kinda an issue here. But it alwas is. __________________ 91 LX COUPE, 3.73 gears, 2 1/2 inch H-Pipe, 1 5/8 MAC long tube headers, 73 MM C&L MAF, 70 MM MAC TB, LUNATI cam,1.7 TFS Rockers, TFS Track Heat heads, TFS Track Heat intake, T5 with PRO 5.0 shifter, Griffin aluminum radiator, Fluid Damper, SSM traction bars, 190 GPH in tank fuel pump. And more to come.

03-01-2003, 10:39 PM	#2
Shaggy Registered Member Join Date: Feb 1999 Location: Houston,TX Posts: 466	My personal opinion there is no replacement for displacement.... If all you are looking for is another 3 MPH though labor wisse it would be easier to put on a set of twisted wedges or afr's. __________________ A good plan, violently executed now, is better than a perfect plan next week. George S. Patton, General (1885-1945)

03-03-2003, 04:00 PM	#3
NOSty347 Registered Member Join Date: Aug 2002 Location: Monroe,LA Posts: 18	I have a 347 in my daily driver and i love it. My car traps about 120 on motor and it has not been tuned yet. Can't wait til i get new 1 3/4 bassani, header full 3in exhuast and some tuning looking for 123+ on motor __________________ 89 GT CHP Pro Street 347 Stroker. 10.3 compression. AFR 205's, comp camXE282, Holley systemax Intake, AFM PMS and power pipe, CompuCar NOS. And all the bolt-ons

03-03-2003, 05:14 PM	#4
techsan Registered Member Join Date: Jan 2003 Location: Houston Posts: 20	The 331 should give you better life for a daily driver application, plus the price is a little bit nicer. If the heads have a good port job it may be worth getting the extra displacement, and still have an engine that will last more than 20,000 miles. __________________ 88 LX convt. 5.0L 306 Trick Flow Stage II Heads, all the bolt-ons, X Cam, 4.10's etc., etc., etc.

03-03-2003, 06:19 PM	#5
5ohCOUPE Registered Member Join Date: Sep 2001 Location: ORANGE PARK FL. USA Posts: 208	OK, I think Ive decided on what im gonna do. Im gonna build a 306 and put a set of AFR 165's and an Edelbrock performer RPM intake on it. Also im gonna change my cam from the lunati I have to the "F" cam. That combo should get me to where I want for now. I hope it gets me at least a 113+ trap speed on motor. If not, then bottle here I come again. __________________ 91 LX COUPE, 3.73 gears, 2 1/2 inch H-Pipe, 1 5/8 MAC long tube headers, 73 MM C&L MAF, 70 MM MAC TB, LUNATI cam,1.7 TFS Rockers, TFS Track Heat heads, TFS Track Heat intake, T5 with PRO 5.0 shifter, Griffin aluminum radiator, Fluid Damper, SSM traction bars, 190 GPH in tank fuel pump. And more to come.