figured out why my engine was knocking!

[boxcarracer89]

I pulled the lower intake off as well and a dog bone wasnt held down by the spider also. pulled the lifters and the ones w the broken rocker had slight metal shavings. these were 1.7 rr i think im gonna pick me up some 1.6's.

 

[ttopstang]

What brand are those rockers?

 

[NIKwoaC]

these were 1.7 rr i think im gonna pick me up some 1.6's.

Why? You'll be giving up performance. I'd also like to know what brand those rockers are.

 

[Rick 91GT]

They look like Proforms.....which are known to be weak and break or bend.

 

[boxcarracer89]

they are proforms, i got a tfs stage 1 and im putting a biger cam from comp cams, i dont think it would fit w the 1.7 rrs.

 

[Cobra912]

those are crap. lucky you caught it before it really went bad.

 

[boxcarracer89]

I know!! any suggestions on what rr's i should get??

 

[Cobra912]

those 3/8 stud mount? I was running harland sharps which were real sweet and now I'm going with trick flow 1.6's.

I hear lots of great things about scorpions!

 

[boxcarracer89]

Yeah they are 3/8 and ok! ill check those out!

 

[Dino Dino Bambino]

those are crap. lucky you caught it before it really went bad.

Pro- anything seems to be junk.

 

[SVT32VDOHC]

RR's suck! A friend of mine's car popped them things off left and right one summer. They were on there for 3 seasons with no trouble, then all the sudden bam bam bam.....stockers are the best.

 

[90lxcoupe]

RR's suck! A friend of mine's car popped them things off left and right one summer. They were on there for 3 seasons with no trouble, then all the sudden bam bam bam.....stockers are the best.

Kinda wierd cause alot of people run quality rockers and never look back at the stock ones...

 

[Dino Dino Bambino]

Like I said, just avoid products whose manufacturer's name begins with Pro- e.g. Proform, Procomp, Professional products etc. They're cheap for a reason.

 

[boxcarracer89]

Yeah I agree, Im gonna run those harland sharps!

 

[FastDriver]

LMAO @ "stockers are best"

 

[mob]

Excuse what may seem like a newb question but what exactly is the benefit of RR's even if they are the same ratio as stock?

 

[FastDriver]

Less friction, and apparently better high RPM capability. I've seen back to back dyno magazine comparisons show 10-15 hp just from the swap to RRs.

Chris

 

[WLDHRSE]

I like the Harland Sharps but run Crane 1.7's. Haven't had the valve covers off since I put them in, 10 years ago.

 

[SVT32VDOHC]

LMAO @ "stockers are best"

Less friction, and apparently better high RPM capability. I've seen back to back dyno magazine comparisons show 10-15 hp just from the swap to RRs.

Chris

So 300-600 for a good set of rockers is worth 10-15HP? So now a 5.0L Mustang can have 235-240HP vs. 225? It might be reeeally fast after that!!!

 

[Mustang5L5]

My Crane Cobra 1.7's look pretty good...got em for $50 too!

Of course, they are still sitting on my desk...but my desk looks faster now!