Cam change in a 307
November 1st, 2016, 09:19 PM
#2
Registered User
Thread Starter
Join Date: Nov 2016
Posts: 2
307 new cam ?
I have a 1986 olds 307 vin y with 7a heads an roller cam can i switch that cam out with a flat tappet cam cause i want a tad bigger cam
Last edited by Hotlil307; November 1st, 2016 at 09:20 PM. Reason: Wrong spelling
November 2nd, 2016, 03:57 AM
#3
4 Barrels of Laughs
Join Date: Jun 2016
Location: I moved to pittsburgh so I can be near Primantis
Posts: 405
tappet bores are different, so sure, just buy the proper parts.
why tho? unless you are improving the heads and exhaust, aint much a larger cam grind is gonna do that a 350 wont solve by sliding it under the intake....
why tho? unless you are improving the heads and exhaust, aint much a larger cam grind is gonna do that a 350 wont solve by sliding it under the intake....
November 2nd, 2016, 05:15 PM
#7
Registered User
Join Date: May 2016
Location: Saskatchewan
Posts: 530
What are the specs on your roller cam? You won't be able to put a very big cam in a low comp 307 without seriously hurting drivability. A properly designed roller cam wil perform better over a greater rpm range than a similar flat tappet grind.
Last edited by Cutlass Fan; November 2nd, 2016 at 05:24 PM.
July 11th, 2021, 05:53 AM
#9
Registered User
Join Date: Oct 2020
Location: Rio Grande Valley, Texas
Posts: 23
Replying to old thread, but as you have a roller cam to start, you can use Comp 262. Use 7.700 pushrodd and the Vin 9 springs.Consider a chip to modify your timing curve for the increased duration and lift, but keep your initial timing at 20 deg
Thread
Thread Starter
Forum
Replies
Last Post
