hey guys, i want to swap some 1.6 RR in my car, but im not sure what to go with. i know i should swap my springs when i do the rocker arms which springs should i get? i think i found the right rockers but i have no clue on the springs. thanks for any advice

http://store.summitracing.com/partde...C&autoview=sku


should the springs be flat tappet hydraulic or roller hydraulic?

http://store.summitracing.com/egnsea...=KeywordSearch

 

you need new hydraulic roller lifters, preferebly comp r's, but it's not necessary to change them, comp cams dual valve springs are preferable replacements that serve nicely. hydraulic roller rockers if you are sticking with the stock cam. might check into replacing rocker arm studs as well. on well worn motors with hard miles, the studs will sometimes break within the rocker arm trunion area. arp makes nice studs that are very strong. what cam are you going with? what lobes, ramp rates, duration, lift, etc?

 

That's the biggest thing right there. Figure out what cam you're going to use and save yourself some time down the road.

 

you arent doing a cam swap?

if thats the case, plan ahead and get some springs that would work with the stuff you plan to do later on.

I went with 918 Beehive springs because both the better technology behind them, but also that they better bind point, meaning you can use a bigger cam.

Anyways the stock spring dimensions are around OD=1.46 ID=.700

but if you do get new springs remember to call up the Tech guys from the company you are buying springs from first.

 

I second the cc-918 springs. They're for the LSx motors, but drop right onto the LT1. DON'T get the comp r lifters. If yours are in good shape, you can keep them.

Crane has a spring kit that comes with everything and they will handle just about any shelf cam you can throw at them. 10308-1 is the part number.

I would also recommend staying away from the Proform Rockers. They are pretty cheaply made. Get the Comp Cams NSA 7/16" Pro Magnum RR and some ARP 7/16" studs.

 

im not doing a cam swap anytime soon. i just want to change my rockers and springs.

and are the rockes i found on summit good? will they work for my car?

can someone help me out with a link to some springs i dont know what im looking for.

 

1.6Crane golds(never had a problem with proform in my 95Lt1;that is is you wan't cheaper),hardened magnum push rods, and behives(match your cam).Then you are good to go.

 

IMO, do not buy aluminum rockers, its a long explanation why, but they IMO again, are not up to daily driver tasks.

Get some steel ones, I run CAT performance 1.65 Steel Non Self Aligning Full Roller rockers, they are usually about $150 for a set for a SBC.

Comp Cams makes a good rocker too, but they are really expensive, and they are the same exact design as the CAT rockers

 

Dude, Google is your friend. Several people have posted up suggestions, don't make us do all the leg work too, lol.

Crane 10308-1 (kit)
Comp Cams 918-26 and all of the hardware including the 10 degree retainers and 10 degreee +.050" locks
Comp Cams 1305-16
ARP or Comp 7/16" rocker studs

Almost all of this can be found on Thunderracing.com

 

thanks, thats what i was looking for

 

You aren't REQUIRED to answer him either.

 

I know, man. Just trying to help the man to help himself.

 

comp cams 26918 springs work great for 600 to 625 lift
RR Pro-Mags or shaft mount style Jesel, TA, Comp

 

Are those stamped steel or are they like the pro magnum chromemoly ones?

Where did you get them, I never heard of cat performance?

 

They are the exact same design as the Comp Cams

heres a Pic




Go to Catpep.com, I bought them from a good buddy of mine who has an Ebay store, his name is Round88 on ebay, good guy to deal with, he will give you a really good deal

 

so is there any reason not to get 1.7 RR's and springs that can handle them?

 

1.7 is a big ratio, I dont know about the LT1 head, but on the Pontiac head you have clearance issues with the pushrod geometry. you have to elongate the pushrod hole in the head, making it egg shaped.

 

even with the stock cam?
what about 1.65's?

 

Don't bother with anything bigger than 1.6s, it's a pita..

I am currently running comp cams promag 1.6s and have no problems, along with 918 beehives, but mine were purchased over a year ago, others have not been so lucky with the 918s that were purchased recently, after they changed manufacturers:

http://web.camaross.com/forums/showthread.php?t=525349
https://ls1tech.com/forums/showthrea...3&page=1&pp=20

 

I run 1.65 ratios on my trans am, that is actually what the pictures are of