ms4 what pushrods
ms4 what pushrods I have a chance to pick up a used ms4 with TSP 7.350 pushrods. I still have stock heads with ls6 intake. will those pushrods work? will I need to cut my pistons? thanks
You won't need to cut your pistons but those push rods are too short.
push rods are about $110
http://www.texas-speed.com/shop/item...d=152&catid=51
push rods are about $110
http://www.texas-speed.com/shop/item...d=152&catid=51
Yes but longer ones, the ones you posted are shorter ones by .050, you need to go the other way, 7.450
And as far as PtoV clearance I think if you are stock deck and gasket it will make it, but I am NOT positive on that
And as far as PtoV clearance I think if you are stock deck and gasket it will make it, but I am NOT positive on that
Texas Speed is pretty good about designing/phasing their camshafts to work on stock LS1/6 longblocks, with stock pistons and rockers.
I would think you may need a little longer pushrod, maybe 7.400" or 7.425". John J. at TSP might know right off the top of his head, if you call and ask him. Most (but not always) stock combinations are becoming fairly predictable when it comes to pushrod length when using these more common or well known cam grinds.
If you don't have an adjustable pushrod for checking/confirming length, I believe the "rule of thumb" is to have between ONE to ONE AND A HALF turns after ZERO LASH (the point at which all pushrod 'wiggle' has been taken away at the lifter plunger AND rocker arm) when 'bottoming out' the rocker arm bolt on the BASE CIRCLE of your cam. Less than that, and you need a longer pushrod. More than that, and you need a shorter pushrod.
I have some 7.450" Comp Cams, if you need them.
I would think you may need a little longer pushrod, maybe 7.400" or 7.425". John J. at TSP might know right off the top of his head, if you call and ask him. Most (but not always) stock combinations are becoming fairly predictable when it comes to pushrod length when using these more common or well known cam grinds.
If you don't have an adjustable pushrod for checking/confirming length, I believe the "rule of thumb" is to have between ONE to ONE AND A HALF turns after ZERO LASH (the point at which all pushrod 'wiggle' has been taken away at the lifter plunger AND rocker arm) when 'bottoming out' the rocker arm bolt on the BASE CIRCLE of your cam. Less than that, and you need a longer pushrod. More than that, and you need a shorter pushrod.
I have some 7.450" Comp Cams, if you need them.
Texas Speed is pretty good about designing/phasing their camshafts to work on stock LS1/6 longblocks, with stock pistons and rockers.
I would think you may need a little longer pushrod, maybe 7.400" or 7.425". John J. at TSP might know right off the top of his head, if you call and ask him. Most (but not always) stock combinations are becoming fairly predictable when it comes to pushrod length when using these more common or well known cam grinds.
If you don't have an adjustable pushrod for checking/confirming length, I believe the "rule of thumb" is to have between ONE to ONE AND A HALF turns after ZERO LASH (the point at which all pushrod 'wiggle' has been taken away at the lifter plunger AND rocker arm) when 'bottoming out' the rocker arm bolt on the BASE CIRCLE of your cam. Less than that, and you need a longer pushrod. More than that, and you need a shorter pushrod.
I have some 7.450" Comp Cams, if you need them.
I would think you may need a little longer pushrod, maybe 7.400" or 7.425". John J. at TSP might know right off the top of his head, if you call and ask him. Most (but not always) stock combinations are becoming fairly predictable when it comes to pushrod length when using these more common or well known cam grinds.
If you don't have an adjustable pushrod for checking/confirming length, I believe the "rule of thumb" is to have between ONE to ONE AND A HALF turns after ZERO LASH (the point at which all pushrod 'wiggle' has been taken away at the lifter plunger AND rocker arm) when 'bottoming out' the rocker arm bolt on the BASE CIRCLE of your cam. Less than that, and you need a longer pushrod. More than that, and you need a shorter pushrod.
I have some 7.450" Comp Cams, if you need them.
Trending Topics
Yeah, I ran TSP's 233/239 (a couple steps down from the MS4) with 7.450" pushrods (that's what TSP recommended, and that jived with my adjustable pushrod and # of turns past zero). But this was on a 2001 LS6, so I wasn't sure if the valves or cam base were different from LS1 stuff.
I later ported and decked my heads, so I went to a shorter pushrod. My 7.450" Comps only have a couple thousand miles on them.
I later ported and decked my heads, so I went to a shorter pushrod. My 7.450" Comps only have a couple thousand miles on them.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0
Brett Foote I want to say they were about $120-$130 new...
so I would sell for...
$80 Paypal and Shipped UPS.
Upon inspection, if you don't like them, you can return them.
But you should make sure that is the length you need, first.
so I would sell for...
$80 Paypal and Shipped UPS.
Upon inspection, if you don't like them, you can return them.
But you should make sure that is the length you need, first.
We stock & offer both the 7.400" & little bit longer 7.425" length pushrods. I would not try the 7.450" length, the 7.425" length is just about the max.
__________________
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Don't forget about a good dual spring to keep that cam in check. I haven't seen any mention of that yet. The 7.45 pushrods will probably make your PTV clearance a little to close for comfort.
__________________
Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
7.400" should do the trick!
__________________
Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
