new engine

phatboy

New Member

Mar 5, 2006

33

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ca

Jul 15, 2006

#1

• Jul 15, 2006

• #1

putting together engine for my 95 gt convert.
this is my weekend car but nneds to be reliable and able to take long trips.
i've been told to do a 331? would that be the best choice for me ?my goal is some hp gain and relability. the engine now has 110+miles not first owner so unsure would like to rebuild motor and assure myself its done correctly.i have a 302 block ?Machining and all parts wat price range am i looking at for about 300+hp?

 

JJ95GTID

Active Member

Sep 22, 2003

1,141

4

49

Phoenix, AZ

Jul 15, 2006

#2

• Jul 15, 2006

• #2

Is the motor showing any signs of needing rebuilt? Smoking, knocking, etc. If not, then don't rebuild. I have seen 302s go well into the 200k mile range before needing rebuilt. I would go ahead with either a head/cam/intake swap or a supercharger. Go either route with supporting mods like injectors, larger MAF and TB will get you into the 300hp range.

 

OrangeMustangGt

Founding Member

Mar 7, 2002

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Cape Cod, MA

Jul 15, 2006

#3

• Jul 15, 2006

• #3

i agree.....100k miles is nothing for these engines....unless something is broken.i would just slap a h/c/i on or a s/c. OR you can get a low miledge explorer motor.

 

G

Green 94 5.0

Founding Member

Mar 25, 2002

2,601

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79

Ft. Lauderdale, FL

Jul 15, 2006

#4

• Jul 15, 2006

• #4

phatboy said:

putting together engine for my 95 gt convert.
this is my weekend car but nneds to be reliable and able to take long trips.
i've been told to do a 331? would that be the best choice for me ?my goal is some hp gain and relability. the engine now has 110+miles not first owner so unsure would like to rebuild motor and assure myself its done correctly.i have a 302 block ?Machining and all parts wat price range am i looking at for about 300+hp?

Click to expand...

run a compression test. iff all numbers come back close to each other just do an h/c/i swap. 300hp is easily reachable on the stock 302 shortblock. no need to spend the money unless it is necessary since your goals are in that range.

 

Therian

The Highlander

Founding Member

Apr 21, 2002

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1

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Waterloo, Ontario

Jul 15, 2006

#5

• Jul 15, 2006

• #5

as green said, run a compression test. then, more importantly, run a leak down test. If the above two check out then I'd suggest doing an H/C/I. Check out the sticky's at the top of the forum, they have some good combos listed.

If you're eating oil, getting bad blow by, and your cylinders aren't within the same compression range then you'll probably need to rebuild the bottom end. It's that point where you decide if you want a 306, 331 or 347.

 

phatboy

New Member

Mar 5, 2006

33

0

0

ca

Jul 16, 2006

#6

• Jul 16, 2006

• #6

any sugestions

any h/c/i swap sugestions.web sites?
Whats the cost to get me around 3oo+hp
Thanks for the help guys

 

GRGT1994

New Member

Sep 22, 2004

1,034

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Jul 16, 2006

#7

• Jul 16, 2006

• #7

Just to be clear, are you gunning for 300 at the rear wheels (what most here talk about) or at the flywheel (what the manufacturer's advertise)?

300 at the flywheel is no problem at all. 300 at the rear wheels requires HCI and full supporting mods plus some, or a KB or turbo.