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  edelbrock rpm heads on 289 components advice

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Author Topic:   edelbrock rpm heads on 289 components advice
nash
Journeyman

Posts: 96
From: Nashville, TN, USA
Registered: Nov 2000

posted 07-04-2001 12:49 AM     Click Here to See the Profile for nash   Click Here to Email nash     Edit/Delete Message   Reply w/Quote
What is a good combination of rocker arms for this set up. Roller rockers, steel or aluminum or roller tip rockers? Will I need new valve covers and what length hardened pushrods (stock?)? I am trying to keep this on a budget after spending plenty on the heads.

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kcode
Gearhead

Posts: 2983
From: alvaton,ky,usa Suburb of Bowling Green, M&M #79, MCA #29208
Registered: Jun 99

posted 07-04-2001 10:36 PM     Click Here to See the Profile for kcode   Click Here to Email kcode     Edit/Delete Message   Reply w/Quote
Since you spent the money on the heads, don't cut back on the rest of the components.
If you are using a flat tappet cam, the standard length push rods will work, just make sure they are hardened, if not the guide plates will chew them up on no time.

For rocker arms, go with neddle bearing rollers, Crane, Harland Sharp, Comp or even Ford Motorsport. Just make sure you get the right stud size 3/8 or 7/16. If you use rockers with Polylocks, it is advisable to use tall valve covers, Ford Motorsport or Racing all Aluminum looks good.

The Shelby club is having their annual show 7/21 at Moss Wright Park in Goodlettsville. Could be a source for parts.

Mike

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richard bohm
Gearhead

Posts: 373
From: tucson,az-luray,va
Registered: May 2001

posted 07-05-2001 02:38 AM     Click Here to See the Profile for richard bohm   Click Here to Email richard bohm     Edit/Delete Message   Reply w/Quote
excellent advice kcode. i couldnt agree more.

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nash
Journeyman

Posts: 96
From: Nashville, TN, USA
Registered: Nov 2000

posted 07-05-2001 08:41 AM     Click Here to See the Profile for nash   Click Here to Email nash     Edit/Delete Message   Reply w/Quote
Thanks, any advice on the ratios 1.6 or 1.7?

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74merc
Gearhead

Posts: 865
From: Demopolis AL
Registered: Jun 99

posted 07-05-2001 04:59 PM     Click Here to See the Profile for 74merc   Click Here to Email 74merc     Edit/Delete Message   Reply w/Quote
I'd choose my rocker ratio depending on the cam.
Personally, I'd go with 1.6s and get a good cam...

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nash
Journeyman

Posts: 96
From: Nashville, TN, USA
Registered: Nov 2000

posted 07-05-2001 06:05 PM     Click Here to See the Profile for nash   Click Here to Email nash     Edit/Delete Message   Reply w/Quote
The cam I have is the ford motorsports cam that is one step above stock. I am wanting to make some power but maintain streetability. The car is not a daily driver but also not a race car.

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JAAZZY
Gearhead

Posts: 772
From: Bay Area, CA
Registered: Apr 2001

posted 07-06-2001 12:04 PM     Click Here to See the Profile for JAAZZY     Edit/Delete Message   Reply w/Quote
I'd get the lift from the cam and get the 1.6 rockers. Buy good quality roller rockers. Don't buy any cheap no name brand. I have heard horror stories about bad geometry. I run the Comp 1.6 rollers with TFS heads. No complaints.

------------------
65 Stang - TFS SH Stage III Heads, Nash 5 speed, Fuel Injection, etc...
2001 - Z06

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nash
Journeyman

Posts: 96
From: Nashville, TN, USA
Registered: Nov 2000

posted 07-07-2001 08:32 AM     Click Here to See the Profile for nash   Click Here to Email nash     Edit/Delete Message   Reply w/Quote
Thanks for the advice, I think I will go with the 1.6 ratio. On the ford motorsport valve covers that I have seen in magazine adds there is no oil cap on top, do you have to put one in yourself? Other than hardened pushrods and gaskets, what else will I need?

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JAAZZY
Gearhead

Posts: 772
From: Bay Area, CA
Registered: Apr 2001

posted 07-07-2001 10:42 AM     Click Here to See the Profile for JAAZZY     Edit/Delete Message   Reply w/Quote
You will need some type of crankcase ventilation but I'm not familiar with the ones you are referring to. Most I have seen have a location for a breather or pcv.

quote:
Originally posted by nash:
Thanks for the advice, I think I will go with the 1.6 ratio. On the ford motorsport valve covers that I have seen in magazine adds there is no oil cap on top, do you have to put one in yourself? Other than hardened pushrods and gaskets, what else will I need?

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kcode
Gearhead

Posts: 2983
From: alvaton,ky,usa Suburb of Bowling Green, M&M #79, MCA #29208
Registered: Jun 99

posted 07-07-2001 11:19 PM     Click Here to See the Profile for kcode   Click Here to Email kcode     Edit/Delete Message   Reply w/Quote
Nash
The Aluminum Motorsport valve covers have "knockouts", you actually have to cut them out, not everyone will use the same type of pcv system. So you cut out the way you want it.

Mike

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