306, 331 or 347 bulid up

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SuperDust22

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All right I have decided to just do a new engine build up. I just bought a 94-95 cobra intake manifold and I was going to get a pair of E7's ported out with a new cam. If I am going to go that far I might as well get a new block assembly. Should I go with a 306, 331 or 347? I know the more displacement the more power I will make. I just didn't know if there was any down falls in the 347 or 331. I know they are stroked. Will a set of ported E7's work well with those blocks? I want to try to do this build up a little cheaper. I don't have all the money in the world and I am not looking to try to set a record. I just want to have a good reliable engine with a lot of power. And where would I find a good block assembly for a good price?

 

GTJake

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#2

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Is there something wrong with your current engine?

Jake

 

S

SuperDust22

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Oct 19, 2003

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It has about 100,000 miles now. and it has been driven pretty hard. I will know more if I start taking it apart.

 

GTJake

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#4

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100k is nothin. Why get a whole new engine when you don't really need to? I've seen 5.0's go way into the 200k mile range.

Jake

 

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SuperDust22

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I am just thinking about doing a new block assembly. I wanted to learn alittle more about it.

 

GTJake

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#6

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I would do a search on here and corral and you will find more info than you could possibly read about the advantages and disadvantages of stroker 302 motors.

Jake

 

WhiteDevil

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#7

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• #7

Ported E7s barely support a stock 302 let alone a stroker, man. Go with a good H/C/I and let ur motor be for a little while.

 

94GTLaserRC

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Ernan Says "here it comes... dushbag"

Dec 15, 2003

#8

• Dec 15, 2003

• #8

Ported stock heads, cobra intake and 347=
You cant just "throw" stuff together and make power. Look at Killer Canary's combo which Dynos <300HP and runs HIGH 12's (yes Paul, I said "high" 12's because the other 1/2 second is YOU driving it )

RC
RC

 

S

SuperDust22

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#9

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that's why I was asking about the 306

 

GTJake

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#10

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If you are struggling to save up money in the first palce don't spend your money on ported E7's in the first place. SAVE YOUR MONEY! Throw a higher stall in that auto and put the Cobra intake on and you'll be happy for awhile.

Jake

 

S

SuperDust22

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Oct 19, 2003

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#11

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I might already have to put a whole new trans in there. I was going to get the Art Carr or Level 10 in with a high stall. I still just don't know what I want to do with the enigine. I want more than just the cobra intake.

 

Y

yellow1995Cobra

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#12

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• #12

If you really want a new short block i say go with a 347. Like they said stock ported heads arent gonna work well with the stroker at all. i would look into a set of trickflow TW's or afr 185's. You can get the trickflow heads for 999 new, and sometimes i see them on the corral new for even less.

 

S

SuperDust22

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#13

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damn I thought the trickflows were more than that

 

S

SuperDust22

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#14

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i dont have to have a new block. I just wanted to see the pros and cons. I did want to try to build a enigne out of the car then drop it in and sell the old one.

 

94GTLaserRC

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Ernan Says &quot;here it comes... dushbag&quot;

Dec 15, 2003

#15

• Dec 15, 2003

• #15

Trick Flow=$1G

I didnt see you had AODE..Yes..get a PI Stallion TC.
For the engine, You can get a TW Street heat and heads and use them with your current block. If the engine goes, hopefully by that time you will have been able to save up for the stroker. Then you could keep the heads and intake. The TW heads and intake may not be the very best with a stroker, but they will work with what you have now and with the stroker if you need it.

DEF. do the Converter first

RC

 

Y

yellow1995Cobra

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#16

• Dec 15, 2003

• #16

The TW heads and intake may not be the very best with a stroker, but they will work with what you have now and with the stroker if you need it.

Click to expand...

The TW heads (2.02 valves) will work great with a 347. The ports may need to be massaged a bit, but that head can really grow with the shortblock.

 

3

347Stroked95

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#17

• Dec 15, 2003

• #17

Hmm.... A 347 with some TW's sounds good. I'll have to think about that

 

S

SuperDust22

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#18

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haha thanks

 

S

SuperDust22

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Oct 19, 2003

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#19

• Dec 15, 2003

• #19

Actually my aode is shot. I am going to have to get a whole new one. I am thinking Art Carr or level ten. I will get there converters that they make

 

ProKiller

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#20

• Dec 15, 2003

• #20

buy a short block assembly from either keith craft, coast high(formally Probe), or D.S.S. i would go with DSS, they are well proven performers.(not to say the others aren't) As a question of which size? i would say either a 331 or a 347. the 306 just doesn't seem enough to me if your spending the money. the 347 puts more wear on the internals from the longer stroke and will need to check for rod clearances and all that jazz where as the 331 you won't.