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)?

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'..........

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

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. :D 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.

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?

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

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............

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.