Fox T-Bird/Cougar Forums

Technical => Engine Tech => Topic started by: t-bird85 on November 02, 2005, 11:14:53 AM

Title: Pushrods ans pistons?
Post by: t-bird85 on November 02, 2005, 11:14:53 AM
Anyone use Comp hardened push rods? Do you like them and have you had any problems? same question about Speed-pro Forged pisons and ring.
Title: Pushrods ans pistons?
Post by: t-bird85 on November 03, 2005, 03:36:07 PM
I take it noone has ever used these, Ill post and let you know what i think of them.
Title: Pushrods ans pistons?
Post by: Nate on November 03, 2005, 04:32:23 PM
pleas do, i might get a set to go with the new heads. what kind of roller rockers do you have? i got some crane bolt on's but the heads will have studs so im gonna have to switch to something else. guess ill have to waite till i get the heads in to find out what my options are.
Title: Pushrods ans pistons?
Post by: t-bird85 on November 03, 2005, 04:34:42 PM
Crane roller rockers, 1.7's what heads are you looking at getting?
Title: Pushrods ans pistons?
Post by: Nate on November 03, 2005, 04:42:29 PM
im pretty sure they are the same ones you have. world small block heads, probley cast iron (sence alot of people have bad stuff to say about the aluminum) 180cc. it was a toss up between them and power heads, but sean showed me the bennifits of the world heads so im leaning twards them.
Title: Pushrods ans pistons?
Post by: t-bird85 on November 03, 2005, 04:54:22 PM
the other thread asking about the head i listed some part numbers youll need for them, aslo iron has more potential ot create HP and Iron are proven to flow better the only advantage of aluminum is appearance (which i prefer paint any way) and weight.
Title: Pushrods ans pistons?
Post by: Nate on November 03, 2005, 05:07:49 PM
yeah, i'v heard the flow qualitys of iron being better. but also from a guy i know that's been building engines for ever 40 or so years, alot of the aluminum heads he sees get warped pretty quick. i'd hate to shell out almost a grand to have em get warped lol and i think flow is more important than about 50# anyway lol. hell... i could take out the passanger seat before i go to the track and save that.
Title: Pushrods ans pistons?
Post by: t-bird85 on November 03, 2005, 05:09:13 PM
I like the way you think.  :D
Title: Pushrods ans pistons?
Post by: SirChirpAlot on November 04, 2005, 03:06:08 PM
Push rods no probs the pistons ya big probs
I will not use or recamend them.  If u want pics of mine and skirts cracking i have n prob posting or sending you them
Title: Pushrods ans pistons?
Post by: t-bird85 on November 04, 2005, 03:16:18 PM
Post some pics please, i would like to see what im going to run into, being they are already here and mounted to my connecting rods its a little late to go back  :)  Wish me luck.  Oh BTW did you have the forged or the hypers?  do you have apart number
Title: Pushrods ans pistons?
Post by: SirChirpAlot on November 04, 2005, 04:04:53 PM
I would have to go to shop and take new pics of cracked ones as well.  Anything else just ask.

I need lookup the part number as well
Title: Pushrods ans pistons?
Post by: t-bird85 on November 04, 2005, 04:07:17 PM
Pistons look clean,  I sure hope i dont run into that,  Hopefully not, but im not going to be spaying just adding a Supercharger or a blower not sure which.  But I really dont think spray caused that anyway had to be a defect.
Title: Pushrods ans pistons?
Post by: SirChirpAlot on November 04, 2005, 04:13:25 PM
deafect on one piston ok
But in 7 of them ?

I will be in the shop this weekend and i will take some pics of other ones there all cracking the same way.  That piston in the pic had the skirt fall off and land in oil pan.

I took it as one bad piston and put in a new one and called it good
I got about 1100KMs and anothe piston did the same thing.
I looked up inside bore and saw anothe rpiston with a line so took that one out and sure enuf it was cracking so took rest out.

Though maybe to much or not enuf side clearnce but the block is in speck for the pistons all the way up and down the bore.

Have new areis pistons coming and i will just do the motor again.