Small Block & Big Block Chevy Specific - what size of harmonic balancer for 383?
riplt1
03-25-2009, 02:36 AM
i'm getting close to completing my 383 build. i know there is a variety of different harmonic balancers for an internally balanced motor out there.
i wanted to know what size i should use. and if anybody had any suggestions on brands?
1997bird
03-25-2009, 04:50 AM
What rpm range is the engine running at? Has the engine been balanced? What is your budget?
jg04222
03-25-2009, 07:07 AM
i think most will univerally agree that the ATI super damper is the best on the market. from what I remember, you'll need the 7" balancer (its all based on stroke). i have a 355" engine, so I use the 6 3/8" balancer.
kenSS
03-25-2009, 09:57 AM
ati here also.
riplt1
03-25-2009, 02:57 PM
What rpm range is the engine running at? Has the engine been balanced? What is your budget?
well, you ground my cam for it a while back. and gave me a list of valvetrain parts to go with it. you said it would hit peak power around 6800 rpm but only loose a few horsepower all the way 7200 rpm. and yes its balanced. i'd rather not spend more than $200.
riplt1
03-25-2009, 02:58 PM
how much did ya'll spend on the ati? and where did you buy it from?
1997bird
03-25-2009, 04:16 PM
Sorry about that, I wasn't paying attention to your login ID.
I would run a 8" PowerBond balancer, this will fit into your budget and have a good balancer. http://www.competitionproducts.com/products.asp?dept=715
1997bird
03-25-2009, 04:35 PM
how much did ya'll spend on the ati? and where did you buy it from?
http://www.competitionproducts.com/prodinfo.asp?number=917200
riplt1
03-27-2009, 06:02 PM
thanks guys. i think i'm gonna go with the powerbond. i am on a budget.
and shane, my build is still coming along. i've had to put it on hold for a little bit so i could save up some more money. i put your cam in a couple months ago. then i was sliding in the lifters and one pair of lifters wouldn't slide in right. it was kind of cut wrong. so i'm ordering a single pair from summitt. i'm probablly gonna try to get the motor running on the engine stand first before i put it in the car. i'll try to post some vids of it.
i'm curious to see what the ls1 style lobe design will sound like. haha. yhanks again man.
victor3ranger
03-27-2009, 10:17 PM
If you don't mind me asking what will the LS ground lobes do?? Interested to know.
Are you using a factory roller block or a non-roller block?
What are the specs of your motor??
1997bird
03-28-2009, 05:46 AM
thanks guys. i think i'm gonna go with the powerbond. i am on a budget.
and shane, my build is still coming along. i've had to put it on hold for a little bit so i could save up some more money. i put your cam in a couple months ago. then i was sliding in the lifters and one pair of lifters wouldn't slide in right. it was kind of cut wrong. so i'm ordering a single pair from summitt. i'm probablly gonna try to get the motor running on the engine stand first before i put it in the car. i'll try to post some vids of it.
i'm curious to see what the ls1 style lobe design will sound like. haha. yhanks again man.
Derek that sucks about the lifter set being cut wrong. Was it the main body or the link bar at the top binding up? I look forward to the start up and the vids! PM me about the lifter situation, I can help you out with that.
If you don't mind me asking what will the LS ground lobes do?? Interested to know.
Are you using a factory roller block or a non-roller block?
What are the specs of your motor??
His cam was ground on a lobe design origionally for a LSx family cam. They have been modified to work on a SBC base circle cam core, they might work, but you never know :secret2: . In all seriousness they have worked out quite well for me and his car should be pretty roudy on & off of the giggly gas.
riplt1
03-29-2009, 08:48 PM
yea my bock is from a 1st generation sbc. (non roller block) i'm using retrofit hydraulic roller lifters.
riplt1
03-29-2009, 08:50 PM
my motor is a 381 c.i. with dart heads. eldlbrock rpm air gap with a holley proform 750 carb