strangebrew

.550 lift is tough on retainer/guide relations did i go to far? this chart said it works but the tech said .550 lift is tough on retainer/guide relations but they have a plan to fix it.
what they are building is a 306 forger DSS short block with Gt40 heads full cran roller rockers hardend push rods melling oil pump trick flow intake.
Let me kmow what you all think....
http://i101.photobucket.com/albums/m...d_cams_137.gif

heres some links to what they have.

http://store.summitracing.com/partde...&N=700+115
http://store.summitracing.com/partde...p;autoview=sku
http://store.summitracing.com/partde...p;autoview=sku

aode08

the cam specs are missing for that camshaft, with the link provided for summitt.

But no, a .550 lift wears nothing

strangebrew

just click on overview but here it is anyways.
http://store.summitracing.com/partde...amp;N=700+150+

aode08

your ok boss and thats not a .550 lift cam,

just dont use 1.7 rockers(which add .030 lift), stay with the 1.6 factory ratio.

Brand:COMP Cams ProductLine:COMP Cams Xtreme Energy Camshafts PartType:Camshafts CamStyle: Hydraulic roller tappet BasicOperatingRPMRange: 1,300-5,300 IntakeDurationat050inchLift: 208 ExhaustDurationat050inchLift: 216 Durationat050inchLift: 208 int./216 exh. AdvertisedIntakeDuration: 258 AdvertisedExhaustDuration: 266 AdvertisedDuration: 258 int./266 exh. IntakeValveLiftwithFactoryRockerArmRatio: 0.533 in.ExhaustValveLiftwithFactoryRockerArmRatio: 0.544 in. ValveLiftwithFactoryRockerArmRatio: 0.533 int./0.544 exh. lift LobeSeparation(degrees): 112 IntakeValveLash: 0.000 in. ExhaustValveLash: 0.000 in. ComputerControlledCompatible: Yes GrindNumber: FW XE258HR-12 Quantity: Sold individually. Camshaft, Hydraulic Roller Tappet, Advertised Duration 258/266, Lift .533/.544, Ford, Small Block, Each [ul]Check to make sure this part fits your application [/ul] [/align] Get Xtreme performance from COMP Cams.
COMP Cams Xtreme Energy camshafts are built to take advantage of the latest cam technology, to provide maximum performance. Whether your use is off-roading, towing, or street performance, there is an Xtreme Energy cam available for you. By using an aggressive lobe profile, these cams provide better throttle response and more top-end horsepower than equivalent cams from other manufacturers, while delivering increased engine vacuum. [/align] Back to Search Results [/align]

strangebrew

ok so its .533-544 lift right? and you are saying 1.7 is too much?

aode08

Looking at the individual components you have selected and the name of the company that makes this camshaft and the specs.
This is a street mannered performance camshaft and will make a good power range within your rpm limits of power.
This cam will clear your stock valve reliefs just fine. Yes that lift is ok with 1.6 rollers.

If your pistons are carboned up, clean them.Mine were so bad originally, i thought I had flat tops till I cleaned them

strangebrew

Its a all new motor

aode08

you could of Private Messaged me that

tinman

Sometimes it's possible to shorten the valve .030 or so and machine it for a P.C. seal......

my77stang

you all fail LOL

you dont shorten the valve, you shorten the guide. anything bigger than .500 and i like to knock them down a little bit. if the shop is doing all your stuff, they can cut your guides down. it can be done with the tooling that chucks up in a standard drill and it takes about 5 seconds to do each guide. dont let them rape you on the labor



and make sure they dont give you umbrellas LOL. you want positive seals, preferably the kind that look like this:
< provide the best oil control, those little white teflon seals are great for the track but these are much better for a street car.