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Author
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Topic: C9-D0** Heads- Have to ask how they compare
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MidLifCrisis
Gearhead Posts: 278
From: USA
Registered: Oct 2001
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posted 12-30-2002 09:53 PM
   
I want to do a mild rebuild on my '67 289. I know heads can give some great gains. I can't handle the $1000+ for aluminum heads. Have been looking at GT-40P, but finding headers sounds like a hassle.
Came across an old Hot-Rod mag and they suggest the C90E or D0OE or D1OE. I found the valves were approx the same size as the GT-40P and the ports are larger than stock 289. I figure they probably have the thermactor bump in the exhaust that will need removing.
SOOOO, question is are they worth tracking down a set? How much should they be milled to maintain 9-9.5 to 1 compression? OR are the GT-40P heads for $550 and a set of $250-$300 set of headers the way to go? Thanks in advance. Charlie
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steve'66
Gearhead Posts: 6522
From: Sonoma,CA,USA
Registered: Mar 2000
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posted 12-30-2002 10:23 PM
Charlie,I'd suggest a pair of World Products windsor jrs. Best bang for the buck and your headers will work too. Even Sam has them.  SteveW
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Moneymaker
Administrator Posts: 19704
From: Lyons, IL, USA
Registered: May 99
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posted 12-30-2002 10:43 PM
Yup.  ------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Professional Manwhore
The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
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Rory McNeil
Gearhead Posts: 1210
From: Surrey, B.C. Canada
Registered: Nov 2000
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posted 12-31-2002 12:18 AM
On my 302 Fairmont streeter, I replaced the original 69cc stock heads, with a set of rebuilt, but stock 69 351W heads about 6 years ago. In my case, the Windsor heads actually increased my compression by almost 1 full point, due to the chambers being about 10 cc`s smaller. The car picked up 6 tenths in the 1/4 mile with the 351W heads, although I think it was more due to the extra compression than the slightly bigger valves & ports, but I can`t prove that, one way or the other.------------------
78 Fairmont 428 4 speed 10.20@130mph
80 Fairmont 302 5 speed 12.8@105mph
85 Mustang NHRA Stocker under construction, 302 5 speed
59 Meteor (Canadian Ford) 2 dr sedan 332, auto
74 F350 ramp truck 390 4spd
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sic67coug
Gearhead Posts: 170
From: clearlake california
Registered: Dec 2002
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posted 12-31-2002 12:53 AM
what kind of horse power increase will you get with those heads? ok scenario: stroked out 289-331 .30 over world heads and a wicked cam some headers and roller rockers what kind of horse would i be putting out?
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