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Author
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Topic: more lift out of my gt40p b303, thinking about 1.7rr. any feedback??
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90 7up lx
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Member # 10304
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posted
 
 
want to get more lift out of my cam and am considering geting a set of 1.7 r.r....
anyone use this before? how set up ran? and will i have any clearance issuce w my pistons?
shortblock is out of a 90 and it does have the fly cuts
any fedback is apretiated
thanx ca fords
Posts: 1266 | From: north valley | Registered: Sep 2010
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nitrous_bob
CAFords OG
Member # 77
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posted
with flycuts i say your OK
try it and check for clearance
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5.0 OG since 1990
Posts: 1402 | From: st clair shores MI | Registered: Nov 2000
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triple b
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Member # 8763
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posted
upgraded springs? if not i wouldnt
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1988 4cyl conv 306 HCI "sasha"
2004 tahoe
Sold- 87 GT, 72 chevelle, 63 biscane, 82 monte carlo, 73 nova, 88 silverado,
Posts: 1730 | From: sacramento ca | Registered: Nov 2008
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88FOX
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Member # 9969
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posted
Upgrade the springs the stock won't handle the lift that 1.7 and b303 make.. and you might have clearance issues with you stock valve covers. Everything else should clear fine.
Posts: 1938 | From: bay area | Registered: Apr 2010
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90 7up lx
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Member # 10304
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posted
yea springs have been already upgraded to tfs kit,
Posts: 1266 | From: north valley | Registered: Sep 2010
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MACK.GT
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Member # 10461
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check your current spring specs,bc if you matched the tfs springs to your b cam , the 1.7 ratio might require stiffer springs..
Posts: 446 | From: 510 | Registered: Nov 2010
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straightliner1
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Member # 2679
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posted
I'm running the B cam, 1.7's and stock 160K mile heads/springs on my 91. No float and no flycut pistons. YMMV
[ May 23, 2012, 05:37 PM: Message edited by: straightliner1 ]
Posts: 484 | From: Sacramento | Registered: Apr 2003
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50DADDY
CAFords OG
Member # 3076
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posted
quote:
Originally posted by straightliner1:
I'm running the B cam, 1.7's and stock 160K mile heads/springs on my 91. No float and no flycut pistons. YMMV
Ive run this exact same setup before too without any issue.
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"Im not stupid,i just act that way so i dont make you dummies uncomfortable."
"Old age and treachery shall overcome youth and skill."
Posts: 4827 | From: Suckramento | Registered: Jul 2003
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50Reasons
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Member # 6452
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posted
I've also ran this set up with stock springs and no piston to valve clearance problems my car ran hard for this basic set up my car too was a 90' not that it matters but jus saying
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50Reasons Car Club President
Daniel/50Reasons
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Posts: 9483 | From: Sacramento Ca | Registered: Jan 2006
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