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  Milling heads....1.7 rocker arms

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Author Topic:   Milling heads....1.7 rocker arms
streetstang67
Gearhead

Posts: 397
From: SC, USA
Registered: Nov 2002

posted 02-09-2003 02:45 PM     Click Here to See the Profile for streetstang67   Click Here to Email streetstang67     Edit/Delete Message   Reply w/Quote
I was thinking of some less expensive and easier labor engine work for more hp. Installing heads is basically just bolting up and torquing down, right? what about rocker arms? If its not too hard to install, I was considering taking my current, stock 289 heads and having them milled. How much does that usually cost, and how much hp is it worth? Also, while I'm messin with the heads, I thought about mabye getting some 1.7 mabye roller, rocker arms. How much hp are these worth? Thanks

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capri man
Gearhead

Posts: 7249
From: doerun, ga.
Registered: Nov 2000

posted 02-09-2003 03:37 PM     Click Here to See the Profile for capri man   Click Here to Email capri man     Edit/Delete Message   Reply w/Quote
milling the heads will certainly help some. but you can get a cam for 1/2 what a set of roller rockers will cost and it will do you more good. just get someone that knows what they are doing to check the piston to valve clearance or you might have a serious piston/valve wreck. that is not a good thing.

------------------
mike r
racing is real
everything else is just a game.
81 capri-7.51 @89mph 1/8
1.54 60 ft.
http://prestage.com/site/site_display.asp?SiteID=141

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streetstang67
Gearhead

Posts: 397
From: SC, USA
Registered: Nov 2002

posted 02-09-2003 03:50 PM     Click Here to See the Profile for streetstang67   Click Here to Email streetstang67     Edit/Delete Message   Reply w/Quote
I was trying to stay away from a cam b/c of installation costs and vacuum problems. I thought that if I got a cam, I would need to get new rocker arms anyway? What all is required to get in a cam swap?

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capri man
Gearhead

Posts: 7249
From: doerun, ga.
Registered: Nov 2000

posted 02-09-2003 04:06 PM     Click Here to See the Profile for capri man   Click Here to Email capri man     Edit/Delete Message   Reply w/Quote
you can get a decent cam kit (including new lifters) for about $135. a$15 gasket set is about all else that you would have to have. the srock rockers will work ok with a mild cam.

------------------
mike r
racing is real
everything else is just a game.
81 capri-7.51 @89mph 1/8
1.54 60 ft.
http://prestage.com/site/site_display.asp?SiteID=141

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Moneymaker
Administrator

Posts: 26813
From: Lyons, IL, USA
Registered: May 99

posted 02-09-2003 06:00 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
1.7 bolt on Magnum style rockers will give you a bit of a racey idle and a little performcance bump without the work of the cam change.

------------------
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,&'03
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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streetstang67
Gearhead

Posts: 397
From: SC, USA
Registered: Nov 2002

posted 02-09-2003 06:42 PM     Click Here to See the Profile for streetstang67   Click Here to Email streetstang67     Edit/Delete Message   Reply w/Quote
What kind of rocker arms do you suggest? Do I just unbolt the old ones and bolt on the new ones, or do they have to be adjusted? How much horsepower do you think?(#s) I just want to know if its worth the time and money. One more thing, if I get these rockers, will I have to adjust them often, or are my heads different? Thanks!

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Moneymaker
Administrator

Posts: 26813
From: Lyons, IL, USA
Registered: May 99

posted 02-10-2003 11:27 AM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by streetstang67:
How much horsepower do you think?(#s) I just want to know if its worth the time and money. One more thing, if I get these rockers, will I have to adjust them often, or are my heads different? Thanks!

Comp Magnums are a good choice for street use.
To some people setting the timing correctly is not worth the time and effort so it's all reletive.
It sounds to me like you don't want to go through the trouble of swapping out a cam.
The 1.7 rocker is a simple bolt in alternative. Results will depend on the rest of the car/engine.
I wish that I had a magic wand that I could sell which would allow miraculous changes with one swish, but unfortunatley I don't.

------------------
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,&'03
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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