what rockers do i have ?

whitepony · 05-15-2005, 09:04 AM

ok i have a set of gt 40 p heads and was woundering what size rockers i have? 1.6, or 1.7

and does anyone know how the back seat omes out of my stang (1988 hatch)?

83GTMUSTANG · 05-15-2005, 01:00 PM

Are They Stock Rockers If So They Are 1.6......and The Rear Seat Back Has Two Bolts On Each End At The Pivot Point Take Those A Lose Than You Can Pushthe Bottom Cushen Back An Take It Off ............i Did The Same Thing In My 83'..........

whitepony · 05-18-2005, 09:39 PM

ya they are stock would 1.7 help me out

pivot point you mean where the backs fold there is 2 bolts for the bottom part ?
thanks for the reply

~The Jester~ · 05-18-2005, 11:08 PM

There's about 3 or 4 discussions on the board right now about the 1.6 vs. 1.7 rockers.

IMHO It just ain't worth it. Stay with the 1.6's. 1.7's add soo much strain on valve springs, push rods, lifters etc etc. I ran my combo through desktop dyno, and it came out to 579 HP @ 7000. Changed NOTHING but the lift (doing the math, and going to 1.6's) and it dropped all the way down to 576 HP @ 7000. This is going from an intake lift of .647 (1.7) to an intake lift of .609 (1.6)

I'll never feel 3 HP, and I'm sure that N2O plate will more than make up for it.

Do what you want, but in my opinion, in the long run it's just not worth the minimal gain you'll get. You'll get more for you dollar by throwing those stamped 1.6 hunks of recycled beer cans in the trash, and getting yourself a good set of 1.6 rollers.

82 GT · 05-19-2005, 04:39 PM

But isn't switching to 1:7's a much easier way to increase valve lift instead of swapping cams?

whitepony · 05-19-2005, 07:01 PM

thanks.

ya 3 hp isn't worth about 200 or 300 dollars.
thanks jester for saving me sum money

83GTMUSTANG · 05-19-2005, 09:17 PM

I Just Put Mine (1.72) In Yesterday An They Fine So Far No Problems At This Time Exaust Sound Deeper ---i Killed To Birds With One Stone Wanted A Bigger Cam And Wanted Roller Rockers ...hmmm Lets See F Or X Cam An 1.6 Rr's $400 Or 1.72 An Use Existing E Cam With 1.72 Rr's $102 (ebay) No Comparison But Do What Suits You............

Ieatcamaros · 05-20-2005, 06:36 PM

Yeah, but you have much more stress on your vavletrain now. IMO, $400 for the cam and 1.6 rockers is cheaper than what it could cost when one of your pushrods break.

05-15-2005, 09:04 AM	#1
whitepony Registered Member Join Date: Feb 2003 Location: ontario canada Posts: 165	what rockers do i have ? ok i have a set of gt 40 p heads and was woundering what size rockers i have? 1.6, or 1.7 and does anyone know how the back seat omes out of my stang (1988 hatch)?

05-15-2005, 01:00 PM	#2
83GTMUSTANG N-V-ME Join Date: May 2005 Location: SOUTHFIELD,MICHIGAN Posts: 155	Re: what rockers do i have ? Are They Stock Rockers If So They Are 1.6......and The Rear Seat Back Has Two Bolts On Each End At The Pivot Point Take Those A Lose Than You Can Pushthe Bottom Cushen Back An Take It Off ............i Did The Same Thing In My 83'..........

05-18-2005, 09:39 PM	#3
whitepony Registered Member Join Date: Feb 2003 Location: ontario canada Posts: 165	Re: what rockers do i have ? ya they are stock would 1.7 help me out pivot point you mean where the backs fold there is 2 bolts for the bottom part ? thanks for the reply

05-18-2005, 11:08 PM	#4
~The Jester~ Rat Killer Join Date: Aug 2002 Location: Cold ass Ohio Posts: 1,143	Re: what rockers do i have ? There's about 3 or 4 discussions on the board right now about the 1.6 vs. 1.7 rockers. IMHO It just ain't worth it. Stay with the 1.6's. 1.7's add soo much strain on valve springs, push rods, lifters etc etc. I ran my combo through desktop dyno, and it came out to 579 HP @ 7000. Changed NOTHING but the lift (doing the math, and going to 1.6's) and it dropped all the way down to 576 HP @ 7000. This is going from an intake lift of .647 (1.7) to an intake lift of .609 (1.6) I'll never feel 3 HP, and I'm sure that N2O plate will more than make up for it. Do what you want, but in my opinion, in the long run it's just not worth the minimal gain you'll get. You'll get more for you dollar by throwing those stamped 1.6 hunks of recycled beer cans in the trash, and getting yourself a good set of 1.6 rollers. __________________ d-Con Racing "Nothing fancy, just 347 inches of RAT POISON!" MICE need not apply.....

05-19-2005, 04:39 PM	#5
82 GT Import Slayer Join Date: May 1999 Posts: 2,241	Re: what rockers do i have ? But isn't switching to 1:7's a much easier way to increase valve lift instead of swapping cams? __________________ '82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator.

05-19-2005, 07:01 PM	#6
whitepony Registered Member Join Date: Feb 2003 Location: ontario canada Posts: 165	Re: what rockers do i have ? thanks. ya 3 hp isn't worth about 200 or 300 dollars. thanks jester for saving me sum money

05-19-2005, 09:17 PM	#7
83GTMUSTANG N-V-ME Join Date: May 2005 Location: SOUTHFIELD,MICHIGAN Posts: 155	Re: what rockers do i have ? I Just Put Mine (1.72) In Yesterday An They Fine So Far No Problems At This Time Exaust Sound Deeper ---i Killed To Birds With One Stone Wanted A Bigger Cam And Wanted Roller Rockers ...hmmm Lets See F Or X Cam An 1.6 Rr's $400 Or 1.72 An Use Existing E Cam With 1.72 Rr's $102 (ebay) No Comparison But Do What Suits You............ __________________ 88' LX MUSTANG: LINCOLN ROTORS , AIR SUSPENSION FRONT AND REAR, SUBFRAMES, ROLL CAGE, 92' BLOCK, MSD 6AL, ACCEL 8.8 WIRES, ACCEL COIL, EDELBROCK F4B INTAKE (PORTED),2 IN. 4 HOLE SPACERS, HOLLEY 600 CARB.,HOLLEY BLUE FUEL PUMP AN REGULATOR, E 303 (.498 IN. 220 DUR.) CAM, (.535 IN. OF LIFT W/ 1.72 SCORPIN ROLLER ROCKERS), PORTED E7'S, FLOWTECH 1 5/8 LONG TUBE HEADERS, 2 1/2 IN. H PIPE, 2 CHAMBER FLOWMASTERS WITH 3 IN.DUMPS, T-5, 3.73 GEARS, 5 LUG AEROSTAR AXELS, 245-45-17 96' COBRA WHEELS

05-20-2005, 06:36 PM	#8
Ieatcamaros Domestic Rice really sucks! Join Date: Apr 2002 Location: KY Posts: 973	Re: what rockers do i have ? Yeah, but you have much more stress on your vavletrain now. IMO, $400 for the cam and 1.6 rockers is cheaper than what it could cost when one of your pushrods break. __________________ The sig says it all.

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