ultimega

He's guys building my 5.7 stroker bored .005 over waiting on rota8ng assembly I got enforcerheads from AFR 210cc I'm debating on what rockers and lifters to get I'm think ls7 lifters and 1.7 ratio rockers per the heads. But I don't Wana pay an arm and a leg any suggestions?? I found these look decent but not to expensive what yall think ... https://www.jegs.com/i/JEGS/555/20907/10002/-1

https://www.summitracing.com/parts/sum-htlskit2#overview

G Atsma

GM LS7 lifters and OEM rockers will work best up to just over .600 lift.

ultimega

https://cammotion.com/recently-resto...222-232-108-3/

my cam im looking at getting so i should be ok with these parts? looks good for the price i trust jegs and summit

G Atsma

Should be fine. Summit has helped a lot of people here. Give them a call to get their well-informed opinion. They will talk with you.

KCS

iTrader: (20)

Might want to go with roller rockers if the AFR heads use bronze guides.

Those Jeg’s rockers are just the rockers and look like they require you to also buy guideplates and studs to make work.

theunderlord

AFR LS1 Enforcer Cylinder Head

1. AFR LS1

   • Stock GM Rocker Arms - GM Rocker Arms are not designed/engineered to accommodate aftermarket cams or higher spring pressures. At a minimum AFR recommends using Bushing Trunion Kit. Other available options are aftermarket kits from Yella Terra, Scorpion or Hardland Sharp. Without the proper parts you will experience accelerated guide wear.
   • Does not have provisions for 1997-1998 perimeter bolt valve covers, conversion kits available.

Just from AFR's website, however note that like Gary said, OEM stuff works really really well up to certain lifts, but w/ bronze guides...... ymmv

Che70velle

iTrader: (6)

AFR is usually bronze guides. Roller rockers is recommended. I’d go with Yella Terra personally, but everyone has their preferences. I’ve ran Harland Sharp with SBC’s in the past with good results also.

ultimega

cool i definitely want roller rockers

bbond105

Yella Terra rockers have been on my car for 7 years now with zero issues.

LilJayV10

iTrader: (39)

If you don't get the TY rockers, make sure you have enough spring to control the heavier roller rocker.

ultimega

https://www.jegs.com/i/Harland+Sharp...BoCxwEQAvD_BwE I was thinking these the value springs on the afr 210 enforcer heads I got should be ok? Any experience with these rockers?


https://cammotion.com/ls-camshafts/hotrod-ls-camshaft-227-237-111-4/ this the cam I got and here's

These are the head specs u can see the valve spring specs too

99 Black Bird T/A

iTrader: (4)

FWIW -

Harland Sharp had lots of issues with their LS roller rockers in the past. They tried several redesigns etc. I'd pass on the H/S LS rockers and get something else personally. The LS roller rockers Harland Sharp had at the PRI show in 2016 wasn't close to the quality of the LS roller rocker's Yella Terra had. Talked to both in some detail. The Yella Terra team was top notch and inspired confidence in their products based on technical knowledge.

Jesel, T&D & Yella Terra seem to the the overall best and have the high prices from what I've seen over the last 20+ years. Have Jesels on my LS1 383 no issues. Would run Yellow Terra's and T&D also.

Summit has a good quality LS roller rocker from what I gather that won't break the bank. Likewise Comp has a nice 1.8 roller rocker.

ultimega

hey man appreciate your well thought and backed input directly from the manufacturers lol ok i havent purchased the rockers yet i was thinking 1.7 rollerrockers per the head test flow bench I saw these yella terras on this site for cheap are they any good? And what about these jegs rockers

https://autoplicity.com/1005424-yell...paign=shopping

https://www.jegs.com/i/JEGS/555/2015...xoCtewQAvD_BwE

And one more thing do they need to be adjustable ? Or non adjustable does it matter?

or here I'm hearing bad things about autoplicity

https://www.discountbandit.com/yella-terra-yt6645-stealth-rocker-arm-kit-for-small-block-chevy-ls1.html?gs=1

ultimega

actaully I don't think those yella terra gonna work rated for up to 400lbs spring pressure only but not sure entirely what spring pressure is on the afr enforcer 210 heads 1501

ultimega

that's the springs specs on heads I got when it says 140lbs on seat is that the spring pressure? Seems low

ultimega

I think ima just to trunion upgrade and use my stock rockers seems what people are doing and what I've been told twice by two pros

LilJayV10

iTrader: (39)

Interesting that on that AFR review pic they are using stock rockers.

Summit also sells roller tip rockers. That's what I went with when I put TFS As Cast heads on my LS1. The TFS heads come with a little stiffer spring so you can use roller rockers. 430 open IIRC.

All the money I spent on this thing, why I didn't just buy the YT I don't know. Probably because they were twice, almost 3 times the cost of the Summit's.

I tried to get a hold of PAC, who TFS sources their springs from, to ask if I had enough spring for what I was doing. Well those bastards apparently don't return phone calls, messages or emails. I had to get the car back together so I used the springs that were on the heads.

Bspeck82

I would call and see what they recommend for that head. If they use bronze guides it may be smart to use RRs. If uour looking to skimp on parts then get ebay 799s Instead and put some spring on them.

Che70velle

iTrader: (6)

The PAC guy is actually on here most of the time, helping folks with valvetrain related issues. Send him a PM. TurboBuick6 is his user name. He’s extremely knowledgeable and easy to talk to.

99 Black Bird T/A

iTrader: (4)

Happy to share .02 worth of opinion
I would follow what AFR suggests for the heads in question.

I haven't seen the Jegs LS1 roller rockers or talked with anyone who's used them. Likewise, I have no experience with discountbandit or autoplicity. Can't really provide any valid information.

My Jesels are non-adjustable and my engine builder mentioned they were more fiddlely to set up. On the plus side one set, non-adjustable once set correctly - its set. Seems like mostly cost vs ease of set up from what I gather.

Ultimately with AFR heads, Tony Mamo who was the key designer of many of AFR's heads seems to like Yella Terra. I'd go with a set of his custom YT's if funds allow.