Hey Darrell

ken5_0 · November 26th, 2006, 11:53 AM

Didnt mean to bust your chops in the 306 thread! I know you are one of the most knowlegeable guys on here so I have a ? for you. I have a 70 service boss 302 short block. I want to stoke it to 347 and fuel inject it with twin turbo's. Any head suggestions? And set up suggestions? I know I want to run about 8.5 to 1 and twist the hell out of this thing. I hear I can turn this thing at 9,500rpm! is that safe? Any suggestions would be greatly appreciated.

1slo5.0 · November 26th, 2006, 03:33 PM

How much horsepower do you want to make? Why do you want to spin 9500 rpm? I'd be finding a Dart or World block if you are going to rev it that high.

ken5_0 · November 30th, 2006, 12:07 AM

streetable 900hp. I wanted to use a boss block as no one is doing that. But many others have told me to sell the boss short block I have and go from there with an aftermarket block and build. But I have this boss block and I know they are about as tough as ford has made so I thought I would give it some consideration. The boss is standard bore yet and has the rods and crank lightened and still has the og cam. no damage. could ring and bearing it and fire her up. but I want a 347 fuely with lots of boost! Since I dont want a big block rpms make power if they can breath! thats why I want to spin it so fast.

mdvaldosta · November 30th, 2006, 12:17 AM

9500 rpm with a stroker... just isn't gonna happen dude. Won't be necessary with twin turbo's anyways. Good luck finding a cam that'll make power that high and be streetable (unless it's on a trailer). Something more reasonable like 6500 would be more practical and much easier to find compatable parts (heads, cam, intake, converter, etc.) I suppose you could always v-tec it

ken5_0 · November 30th, 2006, 10:30 AM

DREAMS!!! Oh they are so nice to have. I just want to be different but I guess I am going alittle overboard here! Maybe I will sell the boss and build a 347 to twist at 6500 or maybe even 7 with the the hair dryers. shoot maybe I will go with a 408 and only spin it to 5500. who knows. Thanks for the reality check guys!

1slo5.0 · November 30th, 2006, 11:46 AM

You are not going to make 900hp and spin 9500 rpm with a boss block and get any kind of life expectancy out of it. 900hp will not be very streetable either, especially at 9500. There is no need to spin a street motor that high. A 9500 rpm engine will need to be gone thru several times throughout the year as well, not to mention that you will have more money in the short block alone than you have in the entire car just for parts and machine work that are good enough to live at those speeds.

ken5_0 · December 3rd, 2006, 12:07 AM

Hey everyone... I now have a 70 boss 302 shortblock for sale!!!

Modified88Dreamer · December 4th, 2006, 01:14 AM

Originally Posted by ken5_0

Hey everyone... I now have a 70 boss 302 shortblock for sale!!!

November 26th, 2006, 11:53 AM	#1
ken5_0 Regular 1990 GT Convert Join Date: Aug 2006 Location: Prescott WI Posts: 203 iTrader: 0 reviews	Hey Darrell Didnt mean to bust your chops in the 306 thread! I know you are one of the most knowlegeable guys on here so I have a ? for you. I have a 70 service boss 302 short block. I want to stoke it to 347 and fuel inject it with twin turbo's. Any head suggestions? And set up suggestions? I know I want to run about 8.5 to 1 and twist the hell out of this thing. I hear I can turn this thing at 9,500rpm! is that safe? Any suggestions would be greatly appreciated.

November 26th, 2006, 03:33 PM	#2
1slo5.0 MM Ninjas! 1990 Mustang LX 9.36@143 mph Join Date: Jan 2006 Location: North Fond du Lac, Wisconsin Posts: 11,375 iTrader: 1 reviews	How much horsepower do you want to make? Why do you want to spin 9500 rpm? I'd be finding a Dart or World block if you are going to rev it that high. __________________ My daily driver has 16 cylinders and 4400hp @ 1000 rpm.... ***1988 Mustang GT - Stock....almost

November 30th, 2006, 11:46 AM	#6
1slo5.0 MM Ninjas! 1990 Mustang LX 9.36@143 mph Join Date: Jan 2006 Location: North Fond du Lac, Wisconsin Posts: 11,375 iTrader: 1 reviews	You are not going to make 900hp and spin 9500 rpm with a boss block and get any kind of life expectancy out of it. 900hp will not be very streetable either, especially at 9500. There is no need to spin a street motor that high. A 9500 rpm engine will need to be gone thru several times throughout the year as well, not to mention that you will have more money in the short block alone than you have in the entire car just for parts and machine work that are good enough to live at those speeds. __________________ My daily driver has 16 cylinders and 4400hp @ 1000 rpm.... ***1988 Mustang GT - Stock....almost

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November 30th, 2006, 12:07 AM	#3
ken5_0 Regular 1990 GT Convert Join Date: Aug 2006 Location: Prescott WI Posts: 203 iTrader: 0 reviews	streetable 900hp. I wanted to use a boss block as no one is doing that. But many others have told me to sell the boss short block I have and go from there with an aftermarket block and build. But I have this boss block and I know they are about as tough as ford has made so I thought I would give it some consideration. The boss is standard bore yet and has the rods and crank lightened and still has the og cam. no damage. could ring and bearing it and fire her up. but I want a 347 fuely with lots of boost! Since I dont want a big block rpms make power if they can breath! thats why I want to spin it so fast.

November 30th, 2006, 12:17 AM	#4
mdvaldosta MM Fanatic 2002 Mustang GT 11.47@120.58 Join Date: Aug 2005 Location: Valdosta, GA Posts: 3,940 iTrader: 0 reviews	9500 rpm with a stroker... just isn't gonna happen dude. Won't be necessary with twin turbo's anyways. Good luck finding a cam that'll make power that high and be streetable (unless it's on a trailer). Something more reasonable like 6500 would be more practical and much easier to find compatable parts (heads, cam, intake, converter, etc.) I suppose you could always v-tec it

November 30th, 2006, 10:30 AM	#5
ken5_0 Regular 1990 GT Convert Join Date: Aug 2006 Location: Prescott WI Posts: 203 iTrader: 0 reviews	DREAMS!!! Oh they are so nice to have. I just want to be different but I guess I am going alittle overboard here! Maybe I will sell the boss and build a 347 to twist at 6500 or maybe even 7 with the the hair dryers. shoot maybe I will go with a 408 and only spin it to 5500. who knows. Thanks for the reality check guys!

December 3rd, 2006, 12:07 AM	#7
ken5_0 Regular 1990 GT Convert Join Date: Aug 2006 Location: Prescott WI Posts: 203 iTrader: 0 reviews	Hey everyone... I now have a 70 boss 302 shortblock for sale!!!

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