306,331,347 + Boost ?s

david1993gt · September 24th, 2011, 03:26 AM

I have been on the forums for hours and researching what people have done. I understand that the 302 is done right about 520hp at the crank... i want to know what block can i get 700hp at the crank and 600hp down to the ground... right now i got a 306 in there its safe and reliable to be driving around but not what i want in the end... I will have a turbo as my power adder so let me know your ideas thanks guys... sorry if my questions are a little behind the power curve second mustang first serious build..

Stdyhand · September 24th, 2011, 08:35 AM

Is this car for the street or strip? It's good to have a goal but I don't know of any regular street cars making 600 to the ground. However, I think you'd be better off going with a Dart block or swapping to 351 and maybe stroke it out to 408. It will give you the extra cubes plus the stronger block so it kind of helps you reach your mark easier.

I am considering the 351 idea myself and getting a stroker kit for it. I like the piece of mind that the block is going to hold together if I do end up making over what the block can handle.

horsepowerjunkie · September 24th, 2011, 11:41 AM

Dart, World Products, Ford Racing Boss, all make nice 4 bolt main blocks that will handle 1000+ HP!

saleen431 · September 24th, 2011, 08:57 PM

I recently had a 331 stroker built with 10lbs of boost from a vortech v3 blower. I went with a stock block because i didnt want to go too crazy. I've got 482 rwhp. The guys that built the motor said 500hp would be close to my max. It runs like a champ and the blower is low maintenance. That's all I have to offer. Good luck. Just remember, the more hp, the more parts that need to be upgraded. It's ridiculous.

david1993gt · September 25th, 2011, 08:37 AM

The motor i have is supposed to be a 306 with a bunch of bullshit done to it but as of right now i dont know because the guy said that its a gt40 lower with a typhoon upper and i was recently told that those two physically wont match up... So now im looking to build something on my own and do it all the right way the first time... now is 600 to the ground out of reach no but that is what i would like to be able to get out of my build if i turn up the boost and do the proper tuning. Would i be happy with a SAFE 500... yes i dont want to go the 302 stroker where 500 is borrowed time... so now i just have to find the best route for building and swaping these motors... What are your opinions on that

fogged306 · September 25th, 2011, 09:46 AM

Originally Posted by Stdyhand

Is this car for the street or strip? It's good to have a goal but I don't know of any regular street cars making 600 to the ground. However, I think you'd be better off going with a Dart block or swapping to 351 and maybe stroke it out to 408. It will give you the extra cubes plus the stronger block so it kind of helps you reach your mark easier.

I am considering the 351 idea myself and getting a stroker kit for it. I like the piece of mind that the block is going to hold together if I do end up making over what the block can handle.

Originally Posted by horsepowerjunkie

Dart, World Products, Ford Racing Boss, all make nice 4 bolt main blocks that will handle 1000+ HP!

These two responses are all the advice you need. Don't even think about using a production 302 block if those are your goals. A production 351 block and a good tune will live at those levels, especially if you're going turbo. Boost is easier on an engine than a N/A or nitrous set-up making the same power, and of the two FI set-ups, turbo is the easiest on the block because you don't have a blower belt tugging on the crank snout.

If you look around enough, you can find deals on aftermarket blocks. I picked up a dart shp with an internal balance 408 assembly for 3k shipped in the corral classifieds. All the machinework done and shortblock assembled. Deals are out there if you look and have some patience.

david1993gt · September 25th, 2011, 10:17 PM

awsome thanks and i have all the patience in the world i dont want to rush and end up spending twice the money in the end... right now im just gathering a build plan and im going to start with supporting shit like suspension and trans

Silvernblue · September 26th, 2011, 05:20 AM

going past 450 on a stock ford block is asking for trouble....do a 347 stroke FORGED SCAT 9000 series rotating assembly and the b303 cam, good solid dependable, STREETABLE power. Go with a low compression if you want to add a turbo.

david1993gt · September 26th, 2011, 10:22 AM

I have been looking on Forged Piston | Stroker Kits | Crate Engines and they have alot of relatively cheap longblocks and they are all brand new... i think that ill pay the extra money to get a good combo... the 347 i was looking at with full rotating assembly, heads, and cams ran about 6000 and they are supposed to be able to handle up to 1000hp so that is well over my goal thanks again for all the help

fogged306 · September 26th, 2011, 11:35 AM

Don't bother with a dss engine. They use production blocks and claim stupid power handling numbers because if their "special" block prepping and main support system. It's all a gimmick. If you want something to last do what was mentioned before. Go aftermarket on the block or go to a 9.5 deck.

Silvernblue · September 26th, 2011, 05:50 PM

Originally Posted by fogged306

Don't bother with a dss engine. They use production blocks and claim stupid power handling numbers because if their "special" block prepping and main support system. It's all a gimmick. If you want something to last do what was mentioned before. Go aftermarket on the block or go to a 9.5 deck.

Dart block,fox lake block,chp block - all good blocks to start with.

fogged306 · September 26th, 2011, 08:51 PM

Fox lake and chp don't make their own blocks.

69fastback · September 26th, 2011, 08:58 PM

Originally Posted by Silvernblue

going past 450 on a stock ford block is asking for trouble....do a 347 stroke FORGED SCAT 9000 series rotating assembly and the b303 cam, good solid dependable, STREETABLE power. Go with a low compression if you want to add a turbo.

OP, whatever you do, DON'T do this. A b303 is total shit in a 302. If you really want to spend a lot money, and have nothing but a slow ass, boat anchor TURD, then build a stroker and put a letter cam in it. While you're at it, just throw some GT40s on it, and crank that stroker up to about 300 hp. Never take advice from anyone who recommends a letter cam for anything. Especially something with more cubes.

h949h · September 27th, 2011, 12:09 AM

Originally Posted by 69fastback

OP, whatever you do, DON'T do this. A b303 is total shit in a 302. If you really want to spend a lot money, and have nothing but a slow ass, boat anchor TURD, then build a stroker and put a letter cam in it. While you're at it, just throw some GT40s on it, and crank that stroker up to about 300 hp. Never take advice from anyone who recommends a letter cam for anything. Especially something with more cubes.

+1

david1993gt · September 27th, 2011, 02:26 PM

thanks guys im going to keep my eyes open for some good deals around... i have nothing but time and i want to do this right the first time... Would you go automatic or what... i was thinking about swapping in a t56 v-spec but not sure what other things i have to change to make it compatable... has anyone dealt with a tranzilla befor?

69fastback · September 27th, 2011, 08:10 PM

I'm probably the only person on this site that will say this, but go auto if you're going to be racing it.

uedlose · September 27th, 2011, 09:01 PM

what it comes down to is how much power do you really want to make? like said any of the REAL aftermarket blocks and Ford race blocks NOT Ford stock blocks that are so called modded to hold more power will hold 1000 HP and most even more.
the bigger the CID the bigger the turbo needs to be due to feeding the thing and getting rid of the spent exhaust gas. Turbos are far from one size fit all. How much are you willing to give up A/C, P/S. All of this can be a issue with turbos and large cid engines. is gone to be a T4 frame turbo or a T6? Really anything over 351 cid on a T4 frame turbo and you are starting to push Back pressure issues even some t4 frame turbos benefit from a 4in down pipe.
There are those that will tell you they have run a t4 frame turbo on a larger cid engine and yes they have BUT they will make no more HP then a smaller cid engine and some times less with the same size turbo due to there size. a turbo is only gone to flow so much air on the compressor side AND the exhaust side till it runs out of steam NO MATTER WHAT THE CID IS..
Now that being said you are in luck a 302 -351 will work nice on a GOOD t4 turbo and the nice thing is if you want more HP turn up the boost. I would not waste my time on a stock block other then a 351w block. they will take a good bit of power but they still can and will brake were as a aftermarket block will take a ton more and if the tune is off they tend to hold up better also. Nice thing about the 9.5 deck block you have lots more room for a ring package and nice long rods but rotating mass also goes up. and space goes down in the engine compartment. and the short 8.2 deck block offers less ring package room but at the same time people run them well into the 1500+ HP zone without issues at all. they are also lighter then the 9.5 block and they are smaller = more room.
If you want 500rwhp now, I can tell you now you will love it and want more. BOOST is a very addicting thing trust me and 500 rwhp will be just like driving your D/D in a year and you will want more at lease most people do I know I do, nice thing about a turbo you CAN have a 9sec street car and drive the thing like there is no tomorrow on nice days.
Like I said it all comes down to how much HP and $$$$ you have and want and what you want out of the car. dont forget the more HP you have the more $$$$ you will spend in a fuel system I can still remember writing a check for my system just the pump and reg. and 2 filters and a dailflow it cost me almost much as my R-block did. But it is the best of the best and prices on some of this stuff has come down. Think it out then think again then buy.

uedlose · September 27th, 2011, 09:13 PM

Oh and as far as a auto or stick there is nothing better then a turbo car with a auto put it on the floor and never lift. never on and off the gas never falling out of boost or hardly dropping off any just point and aim. And never a missed gear

Beerdog80 · September 27th, 2011, 09:39 PM

Originally Posted by 69fastback

I'm probably the only person on this site that will say this, but go auto if you're going to be racing it.

I'll join you. For consistency and elimination of human error...auto's are the way to go for drags

Sticks impress high school students. Auto's win races.

david1993gt · September 28th, 2011, 01:00 AM

Now if im going to build some good power and smash it through an auto what do i have to do to make that auto compatable with my car and i plan to do this befor i do my motor so that i can just put it all right in the car and not have to worry about my trans.... and with the t56 i have 6th gear which still gives me some cruising what autos are good on the strip but still are street drivable

September 24th, 2011, 03:26 AM	#1
david1993gt Newbie 1993 Mustang GT Join Date: Sep 2011 Location: Alaska/Michigan Posts: 8 iTrader: 0 reviews	what block for boost I have been on the forums for hours and researching what people have done. I understand that the 302 is done right about 520hp at the crank... i want to know what block can i get 700hp at the crank and 600hp down to the ground... right now i got a 306 in there its safe and reliable to be driving around but not what i want in the end... I will have a turbo as my power adder so let me know your ideas thanks guys... sorry if my questions are a little behind the power curve second mustang first serious build.. Last edited by david1993gt; September 24th, 2011 at 07:31 AM.

September 24th, 2011, 11:41 AM	#3
horsepowerjunkie Hardcore Enthusiast 1989 Black LX---Turbo Join Date: Jun 2010 Location: just outside Minot, ND Posts: 1,153 iTrader: 0 reviews	Dart, World Products, Ford Racing Boss, all make nice 4 bolt main blocks that will handle 1000+ HP! __________________ 89 LX Black, Boss 331, C4,T76BB, FAST EFI 82 Capri RS,89 5.0 HO,Comp XE266,TW 170,T5,etc. 73 Dart Sport 340, 410ci Bracket Brawler 72 Demon 340 4-speed 1 of 1667 01 Ram Quad Cab 03 Grizzley 660

September 27th, 2011, 08:10 PM	#16
69fastback Premium Member 1969 Mustang Mach 1 6.824@101.61 Join Date: Aug 2006 Location: Oklahoma jackass, get to driving Posts: 5,565 iTrader: 0 reviews	I'm probably the only person on this site that will say this, but go auto if you're going to be racing it. __________________ ./___ _ ____ ___ \. ( ]]] _ _ O _ _ [[[ ) \_ o _ _____ _ o _/ \|___\| ......... \|___\| http://www.youtube.com/watch?v=HyYU3...e_gdata_player

September 27th, 2011, 09:01 PM	#17
uedlose Regular 89 Mustang Join Date: Oct 2008 Location: Middle Way WV Posts: 184 iTrader: 0 reviews	what it comes down to is how much power do you really want to make? like said any of the REAL aftermarket blocks and Ford race blocks NOT Ford stock blocks that are so called modded to hold more power will hold 1000 HP and most even more. the bigger the CID the bigger the turbo needs to be due to feeding the thing and getting rid of the spent exhaust gas. Turbos are far from one size fit all. How much are you willing to give up A/C, P/S. All of this can be a issue with turbos and large cid engines. is gone to be a T4 frame turbo or a T6? Really anything over 351 cid on a T4 frame turbo and you are starting to push Back pressure issues even some t4 frame turbos benefit from a 4in down pipe. There are those that will tell you they have run a t4 frame turbo on a larger cid engine and yes they have BUT they will make no more HP then a smaller cid engine and some times less with the same size turbo due to there size. a turbo is only gone to flow so much air on the compressor side AND the exhaust side till it runs out of steam NO MATTER WHAT THE CID IS.. Now that being said you are in luck a 302 -351 will work nice on a GOOD t4 turbo and the nice thing is if you want more HP turn up the boost. I would not waste my time on a stock block other then a 351w block. they will take a good bit of power but they still can and will brake were as a aftermarket block will take a ton more and if the tune is off they tend to hold up better also. Nice thing about the 9.5 deck block you have lots more room for a ring package and nice long rods but rotating mass also goes up. and space goes down in the engine compartment. and the short 8.2 deck block offers less ring package room but at the same time people run them well into the 1500+ HP zone without issues at all. they are also lighter then the 9.5 block and they are smaller = more room. If you want 500rwhp now, I can tell you now you will love it and want more. BOOST is a very addicting thing trust me and 500 rwhp will be just like driving your D/D in a year and you will want more at lease most people do I know I do, nice thing about a turbo you CAN have a 9sec street car and drive the thing like there is no tomorrow on nice days. Like I said it all comes down to how much HP and $$$$ you have and want and what you want out of the car. dont forget the more HP you have the more $$$$ you will spend in a fuel system I can still remember writing a check for my system just the pump and reg. and 2 filters and a dailflow it cost me almost much as my R-block did. But it is the best of the best and prices on some of this stuff has come down. Think it out then think again then buy. __________________ Just another turbo Mustang..No dyno numbers just good ets and MPH. And yes it is fast for a street car. few parts for sale https://docs.google.com/document/d/1...l=en_US&pli=1#

September 27th, 2011, 09:13 PM	#18
uedlose Regular 89 Mustang Join Date: Oct 2008 Location: Middle Way WV Posts: 184 iTrader: 0 reviews	Oh and as far as a auto or stick there is nothing better then a turbo car with a auto put it on the floor and never lift. never on and off the gas never falling out of boost or hardly dropping off any just point and aim. And never a missed gear __________________ Just another turbo Mustang..No dyno numbers just good ets and MPH. And yes it is fast for a street car. few parts for sale https://docs.google.com/document/d/1...l=en_US&pli=1#

September 24th, 2011, 08:35 AM	#2
Stdyhand Regular 1991 Ford Mustang GT Join Date: Apr 2011 Location: Missouri Posts: 213 iTrader: 0 reviews	Is this car for the street or strip? It's good to have a goal but I don't know of any regular street cars making 600 to the ground. However, I think you'd be better off going with a Dart block or swapping to 351 and maybe stroke it out to 408. It will give you the extra cubes plus the stronger block so it kind of helps you reach your mark easier. I am considering the 351 idea myself and getting a stroker kit for it. I like the piece of mind that the block is going to hold together if I do end up making over what the block can handle.

September 24th, 2011, 08:57 PM	#4
saleen431 Newbie Join Date: Jun 2010 Posts: 15 iTrader: 0 reviews	I recently had a 331 stroker built with 10lbs of boost from a vortech v3 blower. I went with a stock block because i didnt want to go too crazy. I've got 482 rwhp. The guys that built the motor said 500hp would be close to my max. It runs like a champ and the blower is low maintenance. That's all I have to offer. Good luck. Just remember, the more hp, the more parts that need to be upgraded. It's ridiculous.

September 25th, 2011, 08:37 AM	#5
david1993gt Newbie 1993 Mustang GT Join Date: Sep 2011 Location: Alaska/Michigan Posts: 8 iTrader: 0 reviews	The motor i have is supposed to be a 306 with a bunch of bullshit done to it but as of right now i dont know because the guy said that its a gt40 lower with a typhoon upper and i was recently told that those two physically wont match up... So now im looking to build something on my own and do it all the right way the first time... now is 600 to the ground out of reach no but that is what i would like to be able to get out of my build if i turn up the boost and do the proper tuning. Would i be happy with a SAFE 500... yes i dont want to go the 302 stroker where 500 is borrowed time... so now i just have to find the best route for building and swaping these motors... What are your opinions on that

September 25th, 2011, 10:17 PM	#7
david1993gt Newbie 1993 Mustang GT Join Date: Sep 2011 Location: Alaska/Michigan Posts: 8 iTrader: 0 reviews	awsome thanks and i have all the patience in the world i dont want to rush and end up spending twice the money in the end... right now im just gathering a build plan and im going to start with supporting shit like suspension and trans

September 26th, 2011, 05:20 AM	#8
Silvernblue Newbie 1995 Mustang GT n/a Join Date: Sep 2011 Posts: 16 iTrader: 0 reviews	going past 450 on a stock ford block is asking for trouble....do a 347 stroke FORGED SCAT 9000 series rotating assembly and the b303 cam, good solid dependable, STREETABLE power. Go with a low compression if you want to add a turbo.

September 26th, 2011, 10:22 AM	#9
david1993gt Newbie 1993 Mustang GT Join Date: Sep 2011 Location: Alaska/Michigan Posts: 8 iTrader: 0 reviews	I have been looking on Forged Piston \| Stroker Kits \| Crate Engines and they have alot of relatively cheap longblocks and they are all brand new... i think that ill pay the extra money to get a good combo... the 347 i was looking at with full rotating assembly, heads, and cams ran about 6000 and they are supposed to be able to handle up to 1000hp so that is well over my goal thanks again for all the help

September 26th, 2011, 11:35 AM	#10
fogged306 MM Fanatic 89 GT Join Date: Apr 2007 Location: NY Posts: 4,875 iTrader: 2 reviews	Don't bother with a dss engine. They use production blocks and claim stupid power handling numbers because if their "special" block prepping and main support system. It's all a gimmick. If you want something to last do what was mentioned before. Go aftermarket on the block or go to a 9.5 deck.

September 26th, 2011, 08:51 PM	#12
fogged306 MM Fanatic 89 GT Join Date: Apr 2007 Location: NY Posts: 4,875 iTrader: 2 reviews	Fox lake and chp don't make their own blocks.

September 27th, 2011, 02:26 PM	#15
david1993gt Newbie 1993 Mustang GT Join Date: Sep 2011 Location: Alaska/Michigan Posts: 8 iTrader: 0 reviews	thanks guys im going to keep my eyes open for some good deals around... i have nothing but time and i want to do this right the first time... Would you go automatic or what... i was thinking about swapping in a t56 v-spec but not sure what other things i have to change to make it compatable... has anyone dealt with a tranzilla befor?

September 28th, 2011, 01:00 AM	#20
david1993gt Newbie 1993 Mustang GT Join Date: Sep 2011 Location: Alaska/Michigan Posts: 8 iTrader: 0 reviews	Now if im going to build some good power and smash it through an auto what do i have to do to make that auto compatable with my car and i plan to do this befor i do my motor so that i can just put it all right in the car and not have to worry about my trans.... and with the t56 i have 6th gear which still gives me some cruising what autos are good on the strip but still are street drivable

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306,331,347 + Boost ?s

what block for boost