comp 921 springs?
On The Tree
Joined: Dec 2001
Posts: 157
Likes: 0
From: Bklyn. N.Y. U.S.A.
They are just as good, some might even say they are better than the other springs you mentioned. The reason you don't see many guys running them is because they are VERY pricey. I think the complete kit goes for $500.00.
The 921s, PP golds, and PRCs are all great springs. The only thing that separates them are price, not quality. I am a Comp man myself but hate that they are over 500 bucks and the others are under 300.
Trending Topics
On The Tree
Joined: Oct 2004
Posts: 130
Likes: 0
From: Texas
the 921's are excellent...much better than the crane...equal to the lsi...never use the manleys...i have no experience with LS1/LS6 based motors, only with big old dual dom BBC's...my cam specs exceeded .900 lift & over 300 duration
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
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
TECH Apprentice
Joined: Oct 2003
Posts: 369
Likes: 0
From: oklahoma city
Originally Posted by Bryan TTM
the 921's are excellent...much better than the crane...equal to the lsi...never use the manleys...i have no experience with LS1/LS6 based motors, only with big old dual dom BBC's...my cam specs exceeded .900 lift & over 300 duration
We stock both the 921s & the PRC double spring kits. The PRC gold spring kit features titanium retainers specific to only the gold spring. It is designed for use with stock gm locks & includes new spring seats & new seals for $289! It's definately a cheaper than a 921 kit, but both setups work great!
__________________
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
Staging Lane
Joined: Mar 2004
Posts: 54
Likes: 0
From: Kansas City, KS
Put in the 921's when I installed the TRex. Figured for the price they got to be as good or BETTER than anything out there! (Yes, I am one of those Z06vette,com guys in love with the 921's)
Not sure how much extra safety or durability I got for the money, but I am satisfied with the choice.
No issues so far after about 3000-4000 miles.
Steve
Not sure how much extra safety or durability I got for the money, but I am satisfied with the choice.
No issues so far after about 3000-4000 miles.
Steve
LS1TECH Sponsor
Joined: Oct 2003
Posts: 163
Likes: 0
Originally Posted by Jason 98 TA
We stock both the 921s & the PRC double spring kits. The PRC gold spring kit features titanium retainers specific to only the gold spring. It is designed for use with stock gm locks & includes new spring seats & new seals for $289! It's definately a cheaper than a 921 kit, but both setups work great!
I had a set of 921's come with my new stage 3 heads...you wouldnt believe the low pressure these new springs had....both on the seat and off the seat was too low for the cam i was going to use......check those pressures! Wash