Pushrod Question?
Thread Starter
Instructor
Joined: Dec 2016
Posts: 119
Likes: 20
Pushrod Question?
My parts are finally ALL bought (finally, my CC chip was wearing out), they are either on and fit, or tested and fit, my mechanic measured pushrods yesterday (7.250). I saw some Comp Cams 7.205 High Energy, their lowest series....
High Energy - Economical OE replacement series for street rods and daily drivers.
Magnum – Ideal pushrod series for street performance and mild race engines.
Hi-Tech – Designed for hardcore street performance and race applications.
I bought them because no one that I can find sells them locally, and Amazon can have those here Monday, and I can be toodling around on Tues. To refresh, we have a Smeding 383, AFR 195cc Eliminator heads, 510”/.521” Lift, 231°/236° Duration @ .050 w/ 1.6 rockers. These rods are one piece, 5/16's, and wall is .080, and AFR's only recommendation for pushrods is they be .120.
Wrong pushrods for my set up, or am I ok?
High Energy - Economical OE replacement series for street rods and daily drivers.
Magnum – Ideal pushrod series for street performance and mild race engines.
Hi-Tech – Designed for hardcore street performance and race applications.
I bought them because no one that I can find sells them locally, and Amazon can have those here Monday, and I can be toodling around on Tues. To refresh, we have a Smeding 383, AFR 195cc Eliminator heads, 510”/.521” Lift, 231°/236° Duration @ .050 w/ 1.6 rockers. These rods are one piece, 5/16's, and wall is .080, and AFR's only recommendation for pushrods is they be .120.
Wrong pushrods for my set up, or am I ok?
Race Director
Joined: Nov 2006
Posts: 13,151
Likes: 7,765
From: Sunshine Coast, Queensland, Australia
2025 C3 of the Year Finalist - Modified
2024 C3 of the Year Finalist- Modified
2022 C3 of the Year Finalist - Modified
Cruise-In VIII Veteran
Lots of brands of pushrods. But I would be far more concerned about the length. This is extremely important.
you state you ordered shorter pushrods. Why?
you state you ordered shorter pushrods. Why?
Le Mans Master
Joined: Mar 2004
Posts: 7,458
Likes: 1,484
From: Little Rock AR
Cheapest pushrods are not heat treated to be compatible with guideplates.
As was already posted, the correct length needs to be measured and custom made as required. Cost for those is around $100.
As was already posted, the correct length needs to be measured and custom made as required. Cost for those is around $100.
Advanced
Joined: Apr 2021
Posts: 94
Likes: 76
Six choices for hardened 5/16" pushrods in the exact 7.250" length your builder is asking for, in stock ready to ship at Summit.
https://www.summitracing.com/search/...-in%3a7-250-in
https://www.summitracing.com/search/...-in%3a7-250-in
Thread Starter
Instructor
Joined: Dec 2016
Posts: 119
Likes: 20
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,062
From: altered state
St. Jude Donor '05
1 pc pushrods are ideal...not the ones with the pressed in ball up top
Youll know if those pushrods arent up to the task. It will be noisy, car wont make the power it should or min it will give up early
Id put the recommended ones in. Most overlook pushrods...they can flex a lot with higher pressure springs.
Youll know if those pushrods arent up to the task. It will be noisy, car wont make the power it should or min it will give up early
Id put the recommended ones in. Most overlook pushrods...they can flex a lot with higher pressure springs.
Thread Starter
Instructor
Joined: Dec 2016
Posts: 119
Likes: 20
I ordered the Manley Chromoly Swedged End Pushrods, 7.250.
https://www.summitracing.com/parts/man-25734-16
https://www.summitracing.com/parts/man-25734-16
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
Race Director
Joined: Nov 2006
Posts: 13,151
Likes: 7,765
From: Sunshine Coast, Queensland, Australia
2025 C3 of the Year Finalist - Modified
2024 C3 of the Year Finalist- Modified
2022 C3 of the Year Finalist - Modified
Cruise-In VIII Veteran
Glad to hear you thought it over and ordered the length the mechanic measured. Hopefully he measured correctly.
I know when I did my engine the pushrods were a bit of a time holdup. But 5 years later, Im glad I did it right.
I know when I did my engine the pushrods were a bit of a time holdup. But 5 years later, Im glad I did it right.