5.3L Head gaskets?????? 5.7 block
Thread Starter
On The Tree
iTrader: (20)
Joined: Aug 2005
Posts: 185
Likes: 0
From: Elizabethtown, KY
5.3L Head gaskets?????? 5.7 block TEA 5.3 litre 2.02/1.57 Heads,TSP 233/239 .603/.600 112 Lsa Cam With PRC Dual Springs good to .650 lift. Upgradded the PRC retainers to Patriot retainers and Super 7 Locks, TSP hardend Chromoly 7.40" push rods and Comp 850 lifters. I am about to install all of this plus a 90/90 setup and need to order head gaskets. Which are the best one's for my set up? the heads have also been milled very slightly for clean up, and i was thinking a thicker gasket to keep the compression from going through the roof. i plan on running 100 shot also. part #'s and all suggestions are helpful. thanks
kevin
kevin
Trending Topics
Some 5.3 heads have a notch and require the older gasket, some don't and you can use either gaskets tyle. You need to call a sponser and work it out. With a big cam I'd worry more about getting good quench and a good tune...keep the CR up as high as you can. I would guess (read my sig) you're probably around 62cc chambers which is around 10.9:1 making a few assumptions.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
I had 6.0l head gaskets with my 243's to go on my 5.7l. I was told by LPE and my mechanic that under NO circumstances would they put that head gasket on my car. They insisted on the 5.7 gaskets for the 5.7 block.
Originally Posted by Whisky
I had 6.0l head gaskets with my 243's to go on my 5.7l. I was told by LPE and my mechanic that under NO circumstances would they put that head gasket on my car. They insisted on the 5.7 gaskets for the 5.7 block.
I had a faxed picture of the notch in the early 5.3 heads that was sent to me from Futral. It was hard to see on the faxed image though.
You really need to talk with one of the sponsers and get the right answer for your combo. As I recall it was only the early 5.3 heads that had the notch, but I can't remember which one needed which gasket.
Sorry I can't help you more.
Thread Starter
On The Tree
iTrader: (20)
Joined: Aug 2005
Posts: 185
Likes: 0
From: Elizabethtown, KY
back from the dead, i need some help here guys..... anybody with a simular set up? i'm going to get started on my swap (finally) and am only lacking these gaskets... i've been procrastinating a little............ HELP!!!
Launching!
Joined: Mar 2002
Posts: 202
Likes: 0
From: nowhere in particular
I have basically the same setup going on, 2.5 5.3 heads on my stock block, the vendor shipped me the GM replacement head gaskets for my 5.7 block. (get the gaskets that are specific to the block, not the heads)
When I Did My Head Swap I Wanted To Use Gm Mls Gaskets But Tsp Inststed That I Go With Graphite Gaskets Due To The Notch In The Heads... Thats What Im Currently Using And Am Happy So Thats What I Would Reccomend