does a 91 4.3 have roller rockers and lifters?

does a 91 4.3 have roller rockers and lifters?

Postby 91custom_m'lady [OP] » July 19th 2011, 6:52am

I am new to this forum and i have a 1991 astro custom hitop and it currently has 250XXX on the meter and i am wanting to build a hot 4.3 with the edelbrock intake and cam along with port and polished heads and dome top pistons but i was wondering if the 4.3 has roller rockers and lifters because if not i need to order some. According to various websites some say they do have them and some say they dont so if anybody has torn one apart from the pre obd2 period could you please help
PS it is not the high output if this helps

Thanks for your help
GO LIKE HELL UNTIL YOU SEE GOD, THEN BRAKE!
Original Poster [OP]
User avatar
91custom_m'lady
Fueling (1/4 tank)
Fueling (1/4 tank)
Years of Membership: 91custom_m'lady has been a member for 3 full years91custom_m'lady has been a member for 3 full years91custom_m'lady has been a member for 3 full years
Posts: 36
Topics: 13
Joined: July 2011
Gender: Male
Alias (AKA): m'lady
Van Make/Model: Chevrolet Astro
Extra Info: 4.3L V6 RWD

Re: does a 91 4.3 have roller rockers and lifters?

Postby chevymaherchevymaher is online! » July 20th 2011, 12:25am

Astrowill's 90 engine(My old engine)and my 94 engine.Both had roller cams and lifters and stamped rocker arms.
User avatar
chevymaherchevymaher is online!
Team Leader
Team Leader
Firing on 8 Cylinders (L7)
Firing on 8 Cylinders (L7)
Years of Membership: chevymaher has been a member for 4 full yearschevymaher has been a member for 4 full yearschevymaher has been a member for 4 full yearschevymaher has been a member for 4 full years
Posts: 9228
Topics: 61
Images: 93
Joined: November 2010
Gender: Male
Alias (AKA): chevymaher
Year: 1994
Van Make/Model: GMC Safari
Extra Info: SLE RWD cam ported

Re: does a 91 4.3 have roller rockers and lifters?

Postby doyoulikeithere » July 20th 2011, 1:55am

I've heard that the flat hydraulic lifters (nonroll) were in 1985 & maybe 86, (all the 2 pce rear main seal engines)
My 87's have hydraulic roller lifters.
all the early blocks had stamper rockers, I think they started roller rockers in the years post 1999 or 2000, but I'm not positive, cept to say it only on those newer vortec blocks.
:twisted:
doyoulikeithere
Site Contributor
Site Contributor
Firing on 7 Cylinders (L1)
Firing on 7 Cylinders (L1)
Years of Membership: doyoulikeithere has been a member for 6 full yearsdoyoulikeithere has been a member for 6 full yearsdoyoulikeithere has been a member for 6 full yearsdoyoulikeithere has been a member for 6 full yearsdoyoulikeithere has been a member for 6 full yearsdoyoulikeithere has been a member for 6 full years
Posts: 730
Topics: 26
Images: 11
Joined: April 2008

Re: does a 91 4.3 have roller rockers and lifters?

Postby 91custom_m'lady [OP] » July 20th 2011, 3:31am

Ok thanks for the help guys much appreciated
GO LIKE HELL UNTIL YOU SEE GOD, THEN BRAKE!
Original Poster [OP]
User avatar
91custom_m'lady
Fueling (1/4 tank)
Fueling (1/4 tank)
Years of Membership: 91custom_m'lady has been a member for 3 full years91custom_m'lady has been a member for 3 full years91custom_m'lady has been a member for 3 full years
Posts: 36
Topics: 13
Joined: July 2011
Gender: Male
Alias (AKA): m'lady
Van Make/Model: Chevrolet Astro
Extra Info: 4.3L V6 RWD

Re: does a 91 4.3 have roller rockers and lifters?

Postby drmmhmd » July 20th 2011, 4:38am

91custom_m'lady wrote:Ok thanks for the help guys much appreciated


a great way to destroy a new motor is to use the old rollers on a new cam.
drmmhmd
Firing on 1 Cylinder (L1)
Firing on 1 Cylinder (L1)
Years of Membership: drmmhmd has been a member for 3 full yearsdrmmhmd has been a member for 3 full yearsdrmmhmd has been a member for 3 full years
Posts: 157
Joined: July 2011
Gender: Male
Van Make/Model: GMC Safari
Extra Info: AWD 400 CID

Re: does a 91 4.3 have roller rockers and lifters?

Postby T.Neff » July 20th 2011, 2:07pm

T.Neff
Firing on 2 Cylinders (L1)
Firing on 2 Cylinders (L1)
Years of Membership: T.Neff has been a member for 3 full yearsT.Neff has been a member for 3 full yearsT.Neff has been a member for 3 full years
Posts: 281
Topics: 19
Joined: June 2011


 
  • Related topics
    Replies
    Views
    Last post

Return to Engines

It is currently November 23rd 2014, 11:44am

Engines Forum
Engine Repairs, Modifications, Diagnostics, Tuning, Upgrading, Questions.
Moderator: chevy57bert
To create a new topic in Engines, click this button:
Previous topic Next topic
Recent Image Attachments
Attached by:
Attached by: hebert
hebert
in Engines
Views: 168
Comments: 3
Date: Nov 21 '14
Time: 4:06am
» Read last comment
Attached by:
sturoc
in Engines
Views: 1595
Comments: 42
Date: Nov 20 '14
Time: 3:26am
» Read last comment
Attached by:
Attached by: estilian
estilian
in Engines
Views: 423
Comments: 12
Date: Nov 19 '14
Time: 11:55pm
» Read last comment
Attached by:
Attached by: Astro Pop
Astro Pop
in Engines
Views: 193
Comments: 5
Date: Nov 19 '14
Time: 9:21pm
» Read last comment
Attached by:
Attached by: estilian
estilian
in Engines
Views: 193
Comments: 5
Date: Nov 19 '14
Time: 3:20pm
» Read last comment
Sponsors
 

Who is online

Users browsing this forum: Google Adsense [Bot] and 13 guests