Help , 1.6 Or 1.7 Rockers

car9fan · 03-03-2006, 06:42 PM

Hello, Iam building a 347 Stroker and just got a Trick Flow Roller Cam part # 51402001, But come to find out i think iam going to need a little more lift and Dur. If i go with 1.7 rocker arms would that give me more lift/ DUR. THEN MY 1.6 I HAVE NOW, THANKS, CAR9FAN

Rev · 03-03-2006, 10:33 PM

The 1.7's will give you a little more lift but the duration will stay the same.

Rev

Coupe50h · 03-04-2006, 03:12 AM

I saw in another thread, some guy said it can slightly increase dur, but i can not back that up at all.
either way i like my 1.7's, but on a built stroker, id go for 1.6's just for reliability purposes, less stress i guess you can say.

car9fan · 03-04-2006, 04:36 AM

Thanks for the help, Car9fan

~The Jester~ · 03-04-2006, 07:34 AM

1.7's will give you more lift. But NOT more duration.

Take the LOBE lift spec of the cam, multiply it by 1.6, that'll be your advertised lift with the 1.6 rockers. muliply lobe lift by 1.7, you guessed it, advertised lift with the 1.7's.

I have a set of 1.7's on my 347, and have had ZERO problems. Stud girdle might be a good idea though.

car9fan · 03-04-2006, 10:27 AM

Quote:

Originally Posted by ~The Jester~

1.7's will give you more lift. But NOT more duration.

Take the LOBE lift spec of the cam, multiply it by 1.6, that'll be your advertised lift with the 1.6 rockers. muliply lobe lift by 1.7, you guessed it, advertised lift with the 1.7's.

I have a set of 1.7's on my 347, and have had ZERO problems. Stud girdle might be a good idea though.

THANKS FOR THE INFO,THE DUR.@ 50 IS 238 AND LIFT IS 558, IAM GETTING A STUD GIRDLE, THANKS AGAIN, CAR9FAN

03-03-2006, 06:42 PM	#1
car9fan CAR9FAN Join Date: Mar 2004 Location: m.d Posts: 103	Help , 1.6 Or 1.7 Rockers Hello, Iam building a 347 Stroker and just got a Trick Flow Roller Cam part # 51402001, But come to find out i think iam going to need a little more lift and Dur. If i go with 1.7 rocker arms would that give me more lift/ DUR. THEN MY 1.6 I HAVE NOW, THANKS, CAR9FAN __________________ MY HOME PAGE

03-03-2006, 10:33 PM	#2
Rev Registered Member Join Date: Nov 1998 Location: Houston, Tx. Posts: 3,887	Re: Help , 1.6 Or 1.7 Rockers The 1.7's will give you a little more lift but the duration will stay the same. Rev __________________ '66 Coupe, 306, 350-375 HP, C-4, 13.07 e.t., 104.8 mph, 1/4 mi. O.B.C. #2 '66 coupe

03-04-2006, 03:12 AM	#3
Coupe50h Registered Member Join Date: Aug 2002 Location: SanAntonio, Tx Posts: 957	Re: Help , 1.6 Or 1.7 Rockers I saw in another thread, some guy said it can slightly increase dur, but i can not back that up at all. either way i like my 1.7's, but on a built stroker, id go for 1.6's just for reliability purposes, less stress i guess you can say. __________________ X-Texas highway patrol ssp 1990 coupe - exploder Gt-40 iron heads, Explorer intake, 19 lber's. E-cam. crane 1.7 rollers. 190fp. 75mm maf. 65mm tb, tubular subframe connectors, mac cai, Asp crank pulley, T-5, king cobra clutch, flowtech 1-5/8 unequals, mac X-pipe Frpp driveshaft, lakewood Lca's. race weight 3,160 12.69 @ 107.35, 1.71 60' 26x8.5 drag's 3.90 gear 13.20 @ 106.91 - 235/60/15 firestones 2.3 60' 3.27 gear

03-04-2006, 04:36 AM	#4
car9fan CAR9FAN Join Date: Mar 2004 Location: m.d Posts: 103	Re: Help , 1.6 Or 1.7 Rockers Thanks for the help, Car9fan __________________ MY HOME PAGE

03-04-2006, 07:34 AM	#5
~The Jester~ Rat Killer Join Date: Aug 2002 Location: Cold ass Ohio Posts: 1,143	Re: Help , 1.6 Or 1.7 Rockers 1.7's will give you more lift. But NOT more duration. Take the LOBE lift spec of the cam, multiply it by 1.6, that'll be your advertised lift with the 1.6 rockers. muliply lobe lift by 1.7, you guessed it, advertised lift with the 1.7's. I have a set of 1.7's on my 347, and have had ZERO problems. Stud girdle might be a good idea though. __________________ d-Con Racing "Nothing fancy, just 347 inches of RAT POISON!" MICE need not apply.....

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