1.7 rrs and the lt1
Thread Starter
Registered User
Joined: Sep 2006
Posts: 459
1.7 rrs and the lt1
are they too aggressive for the valvetrain? what's the major issue that everyone seems to run into with them? do other companies rockers fit into the lt1 head if they have the same stud size? (ex. ford)
Last edited by Ironxcross; Feb 26, 2008 at 10:32 PM.
Registered User
Joined: Oct 2004
Posts: 1,130
From: las vegas
i dont beleive this statement to be true at all,when you place this 1.7 roller on the stud and measure it,it is alsmost dead center with eachother(valve tip to rocker tip)
the biggest deal with the set up is modding the valve covers or getting taller ones,getting new valve springs etc. If you can't instal a cam this is a good way to go! besides Lt1s like more valve lift
and don't need a bunch of duration.
the biggest deal with the set up is modding the valve covers or getting taller ones,getting new valve springs etc. If you can't instal a cam this is a good way to go! besides Lt1s like more valve lift
and don't need a bunch of duration.
Thread Starter
Registered User
Joined: Sep 2006
Posts: 459
i dont beleive this statement to be true at all,when you place this 1.7 roller on the stud and measure it,it is alsmost dead center with eachother(valve tip to rocker tip)
the biggest deal with the set up is modding the valve covers or getting taller ones,getting new valve springs etc. If you can't instal a cam this is a good way to go! besides Lt1s like more valve lift and don't need a bunch of duration.
the biggest deal with the set up is modding the valve covers or getting taller ones,getting new valve springs etc. If you can't instal a cam this is a good way to go! besides Lt1s like more valve lift
and don't need a bunch of duration.Last edited by Ironxcross; Feb 27, 2008 at 02:12 PM.
Registered User
Joined: Oct 2004
Posts: 1,130
From: las vegas
www.flatlanderracing.com part#scp1026 1.7rr
Registered User
Joined: Jun 2006
Posts: 2,092
From: lakeville, pa
i would just stick with the 1.6 rockers though
Registered User
Joined: Feb 2001
Posts: 479
From: dallas, tx
They would be too aggressive for the stock springs.
Look up Comp Cams, Crane Cams, GM Performance Parts, etc. all these companies offer rocker for the SBC, I would not recommend trying to find Ford rockers that could work on your motor. BTW stock the rocker studs are 3/8" on top and 7/16" threaded into the head, but you can upgrade your studs to 7/16" top and bottom. - which would require the matching rocker arms.
Look up Comp Cams, Crane Cams, GM Performance Parts, etc. all these companies offer rocker for the SBC, I would not recommend trying to find Ford rockers that could work on your motor. BTW stock the rocker studs are 3/8" on top and 7/16" threaded into the head, but you can upgrade your studs to 7/16" top and bottom. - which would require the matching rocker arms.
Registered User
Joined: Mar 2004
Posts: 421
From: South Riding, VA
www.flatlanderracing.com part#scp1026 1.7rr
Registered User
Joined: Oct 2004
Posts: 1,130
From: las vegas
Whats the big deal with changing to guide plates,go to 7/16 studs instead of the 3/8 studs and have hardened pushrods with 1.6 or 1.7.....3/8 studs flex too much at higher rpms
Registered User
Joined: Mar 2004
Posts: 421
From: South Riding, VA