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Need opinions on motor build-up

  • Thread starter Thread starter quick35th
  • Start date Start date Nov 21, 2004
Q

quick35th

New Member
Aug 17, 2003
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0
Hilliard, Ohio
Nov 21, 2004
#1
  • Nov 21, 2004
  • #1
Guys I have a few questions. I am planning on building a 5.0 based 331ci motor for my '90 Thunderbird SC. I will be doing mainly autocross and maybe some road racing and a little drag, but mainly autocross. My goal is to make between 300-400RWHP N/A.

Heres my questions. Can I get these numbers reliably? What short block should I use? I have been looking at the one offerd by D.S.S. racing. Is that a good short block to base my project off of? I dont want to build an unreliable motor that needs rebuild every season and cost loads of cash. I want something that I can run for a long time and be strong. It needs not be an all out race motor as I dont have the skill or need all the power for what I am going to do with it. I am building this motor under a budget and if there is a better value short block out there that will hold up please let me know.

What other parts should I go with? I have been looking at find a used set of Trick Flow Twisted Wedge heads and a Trick Flow Track Heat upper and lower intake.

Shane
 

hllon4whls

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Jan 17, 2002
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Covington
Nov 21, 2004
#2
  • Nov 21, 2004
  • #2
Better go ahead and get the forged/light internals and a good balancer to help out with sustained higher RPM.

Might want to go with an oil cooler and some good quality synthetic.

Other than that, a 331 is a great choice. Lighten up the front of the car, slap on some big brakes and have fun.
 
Q

quick35th

New Member
Aug 17, 2003
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0
Hilliard, Ohio
Nov 21, 2004
#3
  • Nov 21, 2004
  • #3
Cool. Whats a good balancer to go with?

Shane
 

ponyboy19

Founding Member
May 24, 2000
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36
Nov 22, 2004
#4
  • Nov 22, 2004
  • #4
The DSS 331 pro bullet or comparable short block would be a good choice IMO. A stock block will easily handle 3-400 rwhp. I would stay away from used heads though as the price difference from new doesn't justify the gamble you take.. I got burned on that one before.
If it were me building the motor I would do a stock block 331 with good internals and a girdle. If your staying N/A i would bump compression up to 10.5:1. I would go with a FTI AFR head and custom cam set up and matching intake that Ed Curtis suggest. Take the gamble out of it and have them put together a known combination taylored to your car (weight) and intended use. http://www.flowtechinduction.com/ As far as a balancer goes.. I think DSS has one they sell, romac makes a nice one and if you want to pay a little more ATI's can't be beat.
 
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