71 vette new crate engine vacuum question
Thread Starter
Cruising
Joined: Oct 2014
Posts: 11
Likes: 0
From: Chicago
71 vette new crate engine vacuum question
Thanks for any info and input.
I am dropping in a new 383 into my car and am concerned that it wont create enough vacuum to run everything. I have talked to different engine company's and they all say the vacuum comes from the cam shaft used and to use one that created more vacuum reduced performance. Reliability is most important to me.
My question is should I go the cam shaft route and if so any recommendations or should I use an additional vacuum pump?
Here is a link to a pump I found. Any and all recommendation on tis much appreciated. I am looking for a 383 with between 400-450 HP and also great reliability.
pump
https://www.corvettemods.com/Electri...t_p_11779.html
Here is one of the engines i am considering
https://paceperformance.com/i-231311...ange-trim.html
I am dropping in a new 383 into my car and am concerned that it wont create enough vacuum to run everything. I have talked to different engine company's and they all say the vacuum comes from the cam shaft used and to use one that created more vacuum reduced performance. Reliability is most important to me.
My question is should I go the cam shaft route and if so any recommendations or should I use an additional vacuum pump?
Here is a link to a pump I found. Any and all recommendation on tis much appreciated. I am looking for a 383 with between 400-450 HP and also great reliability.
pump
https://www.corvettemods.com/Electri...t_p_11779.html
Here is one of the engines i am considering
https://paceperformance.com/i-231311...ange-trim.html
Had a 1976 L-82, 4-sp
Joined: Mar 2011
Posts: 5,338
Likes: 1,213
From: Some days your the dog and some days your the hydrant.
Royal Canadian Navy
My 355 with a 227*@0.050 and 0.560" lift HR cam gets me about 15" vacuum at 1000 rpm idle with initial advance of ~20*.
Edit: 112 LSA.
Edit: 112 LSA.
Last edited by resdoggie; Mar 21, 2018 at 08:30 PM.
Thread Starter
Cruising
Joined: Oct 2014
Posts: 11
Likes: 0
From: Chicago
Do you have any issues with that blue print. Im trying to decide now if I go with a crate from Blueprint or ATK or a local engine guy near me. The prices are good on those but at the same time I talked to a friend who said they control the price by also putting in cheap parts and those will fail down the road.
What has been your experience?
What has been your experience?
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