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Howards Cam 277

Printed From: TheAMCForum.com
Category: The Garage
Forum Name: AMC V8 Engine Repair and Modifications
Forum Description: AMC-made V8 engine mechanical, ignition and fuel from basic repair to high-perf modifications
URL: http://theamcforum.com/forum/forum_posts.asp?TID=98191
Printed Date: Dec/07/2019 at 2:28pm


Topic: Howards Cam 277
Posted By: Blindman
Subject: Howards Cam 277
Date Posted: Jan/19/2019 at 10:40am
has anyone used this cam? (277/277) would like some user info if so. .... thanks



Replies:
Posted By: Sonic Silver
Date Posted: Jan/19/2019 at 6:09pm
It looks to be very similar to the original Group 19, and the old Crane Fireball, and the Chevy 327/350 cam. 223 duration at .050, on 114 degree lobe centers.


Posted By: waukman
Date Posted: Jan/19/2019 at 7:17pm
I have that camshaft in my 401 engine which is in my 69 AMX
I like it a lot, great mid rpm and low rpm torque 
also very street able in a 401, good vacuum thus no problem with my power brake booster, nice idle



Posted By: Blindman
Date Posted: Jan/19/2019 at 7:22pm
Will it break loose in 2nd. When getting on it? And does it still accelerate at 5000 rpm?


Posted By: waukman
Date Posted: Jan/20/2019 at 8:09am
I do not drive my car aggressively much
I have not taken it to 5000 RPM yet, but I can tell you it keeps accelerating up to around 4500 RPM with no problem, believe it would continue to accelerate past 5000 RPM-I think Howard says power range up to 5500 RPM 
I have not tried burning rubber in second, but it takes off great when I drop it from 4th to 3rd while passing cars on 2 lane highways
I have an old 3550 Tremec 5 speed, with a 3.15 posi 1 piece axle



Posted By: Blindman
Date Posted: Jan/20/2019 at 11:32am
Awesome. ..thanks for the info....did you use a longer pushrod?.....i have the same set up...5 gear...3:31 


Posted By: one bad rambler
Date Posted: Jan/20/2019 at 11:35am
When my 68 AMX was 100% stock..You could spin them in 1st short shift into 2nd at around 4,500 and spin them for a good 50 to 60 feet before it would run out of breath...I installed a group 19 cam and it clearly gained power.....but i didn`t alter anything else meaning carb...intake...headers exc..This video is older than the you tube air date...it was 15 year`s ago when i took it out of early winter storage to give the cat to my son...we still haven`t changed the Javelin marker lenses i have had new ones for 19 years... https://www.youtube.com/watch?v=yGJXDW7HMrM" rel="nofollow - https://www.youtube.com/watch?v=yGJXDW7HMrM

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68 AMX 390 4 Speed,68 American,64 American 2 Door Wagon Altered Wheelbase,78 Concord Build 360,727,8.8


Posted By: one bad rambler
Date Posted: Jan/20/2019 at 11:38am
i saw the orange can of death on the engine...That`s long gone

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68 AMX 390 4 Speed,68 American,64 American 2 Door Wagon Altered Wheelbase,78 Concord Build 360,727,8.8


Posted By: waukman
Date Posted: Jan/20/2019 at 3:14pm
Thanks Blindman

I used custom length 1 piece small hole (if I recall correctly 0.080 hole) Comp Cams push rods, because my engine has Edlebrock cylinder heads with steel Crower roller rockers 



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