Custom Cam Question
#1
Custom Cam Question
First I should mention I've poured over **LT1 Camshaft/Valve Train Selection Guide** - LS1TECH
So I've been doing a lot of research the past weeks because I have a 93 Z28 in need of a head gasket change (I hope that's it) so of course I need to swap out the valve stem seals, rocker arms, arp 7/16 rocker studs, guide plates, springs, push rods, lifters, timing set, pacesetter ceramic coated long tubes connected to Summit Racing Universal 3" stainless X pipe and SLP Loud Mouth II's and meziere electric water pump. (I'll deal with the opti $2000 later with EFI connections LS PCM swap kit). So here is the list of head parts. ARP 134-7103 - ARP High Performance Series Rocker Arm Studs Cloyes Gear C-3228 - Cloyes Heavy-Duty Timing Sets Crane Cams 10308-1 - Crane Valve Spring and Retainer Kits Fel-Pro SS72861 - Fel-Pro Valve Stem Seals Chevrolet Performance 12371042 - Chevrolet Performance Hydraulic Roller Lifters Chevrolet Performance 14011051 - Chevrolet Performance Pushrod Guideplates Scorpion Racing Products SCP1042BL - Scorpion Race Series Rocker Arms Sealed Power 260-1650 - Sealed Power Gasket Sets And now for the camshaft. Comp says custom grind for the same price. I was wanting something between their XFI268 and XFI280. So I was thinking maybe a 222/228 .57*/.56* 112 Or 113 LSA I would like to shift near 6200 or lower. And have a mildly choppy idle.Then the questions are, will the springs I selected be enough or too much? Will the timing set I've selected suffice? Have I selected appropriate lifters? I will choose 5/16 chromoly hardened rods (do I need to measure for each rod?) And is this too much cam for stock intake and throttle body mated to K&N CAI? Throttle body will probably be upgraded during the build... I hope I've given enough information and thanks for any informative input.
So I've been doing a lot of research the past weeks because I have a 93 Z28 in need of a head gasket change (I hope that's it) so of course I need to swap out the valve stem seals, rocker arms, arp 7/16 rocker studs, guide plates, springs, push rods, lifters, timing set, pacesetter ceramic coated long tubes connected to Summit Racing Universal 3" stainless X pipe and SLP Loud Mouth II's and meziere electric water pump. (I'll deal with the opti $2000 later with EFI connections LS PCM swap kit). So here is the list of head parts. ARP 134-7103 - ARP High Performance Series Rocker Arm Studs Cloyes Gear C-3228 - Cloyes Heavy-Duty Timing Sets Crane Cams 10308-1 - Crane Valve Spring and Retainer Kits Fel-Pro SS72861 - Fel-Pro Valve Stem Seals Chevrolet Performance 12371042 - Chevrolet Performance Hydraulic Roller Lifters Chevrolet Performance 14011051 - Chevrolet Performance Pushrod Guideplates Scorpion Racing Products SCP1042BL - Scorpion Race Series Rocker Arms Sealed Power 260-1650 - Sealed Power Gasket Sets And now for the camshaft. Comp says custom grind for the same price. I was wanting something between their XFI268 and XFI280. So I was thinking maybe a 222/228 .57*/.56* 112 Or 113 LSA I would like to shift near 6200 or lower. And have a mildly choppy idle.Then the questions are, will the springs I selected be enough or too much? Will the timing set I've selected suffice? Have I selected appropriate lifters? I will choose 5/16 chromoly hardened rods (do I need to measure for each rod?) And is this too much cam for stock intake and throttle body mated to K&N CAI? Throttle body will probably be upgraded during the build... I hope I've given enough information and thanks for any informative input.
#2
Re: Custom Cam Question
First I should mention I've poured over **LT1 Camshaft/Valve Train Selection Guide** - LS1TECH
So I've been doing a lot of research the past weeks because I have a 93 Z28 in need of a head gasket change (I hope that's it) so of course I need to swap out the valve stem seals, rocker arms, arp 7/16 rocker studs, guide plates, springs, push rods, lifters, timing set, pacesetter ceramic coated long tubes connected to Summit Racing Universal 3" stainless X pipe and SLP Loud Mouth II's and meziere electric water pump. (I'll deal with the opti $2000 later with EFI connections LS PCM swap kit).
So here is the list of head parts.
ARP 134-7103 - ARP High Performance Series Rocker Arm Studs
Cloyes Gear C-3228 - Cloyes Heavy-Duty Timing Sets
Crane Cams 10308-1 - Crane Valve Spring and Retainer Kits
Fel-Pro SS72861 - Fel-Pro Valve Stem Seals
Chevrolet Performance 12371042 - Chevrolet Performance Hydraulic Roller Lifters
Chevrolet Performance 14011051 - Chevrolet Performance Pushrod Guideplates
Scorpion Racing Products SCP1042BL - Scorpion Race Series Rocker Arms
Sealed Power 260-1650 - Sealed Power Gasket Sets
And now for the camshaft. Comp says custom grind for the same price. I was wanting something between their XFI268 and XFI280. So I was thinking maybe a 222/228 .57*/.56* 112 Or 113 LSA I would like to shift near 6200 or lower. And have a mildly choppy idle.Then the questions are, will the springs I selected be enough or too much? Will the timing set I've selected suffice? Have I selected appropriate lifters? I will choose 5/16 chromoly hardened rods (do I need to measure for each rod?) And is this too much cam for stock intake and throttle body mated to K&N CAI? Throttle body will probably be upgraded during the build... I hope I've given enough information and thanks for any informative input.
So I've been doing a lot of research the past weeks because I have a 93 Z28 in need of a head gasket change (I hope that's it) so of course I need to swap out the valve stem seals, rocker arms, arp 7/16 rocker studs, guide plates, springs, push rods, lifters, timing set, pacesetter ceramic coated long tubes connected to Summit Racing Universal 3" stainless X pipe and SLP Loud Mouth II's and meziere electric water pump. (I'll deal with the opti $2000 later with EFI connections LS PCM swap kit).
So here is the list of head parts.
ARP 134-7103 - ARP High Performance Series Rocker Arm Studs
Cloyes Gear C-3228 - Cloyes Heavy-Duty Timing Sets
Crane Cams 10308-1 - Crane Valve Spring and Retainer Kits
Fel-Pro SS72861 - Fel-Pro Valve Stem Seals
Chevrolet Performance 12371042 - Chevrolet Performance Hydraulic Roller Lifters
Chevrolet Performance 14011051 - Chevrolet Performance Pushrod Guideplates
Scorpion Racing Products SCP1042BL - Scorpion Race Series Rocker Arms
Sealed Power 260-1650 - Sealed Power Gasket Sets
And now for the camshaft. Comp says custom grind for the same price. I was wanting something between their XFI268 and XFI280. So I was thinking maybe a 222/228 .57*/.56* 112 Or 113 LSA I would like to shift near 6200 or lower. And have a mildly choppy idle.Then the questions are, will the springs I selected be enough or too much? Will the timing set I've selected suffice? Have I selected appropriate lifters? I will choose 5/16 chromoly hardened rods (do I need to measure for each rod?) And is this too much cam for stock intake and throttle body mated to K&N CAI? Throttle body will probably be upgraded during the build... I hope I've given enough information and thanks for any informative input.
I'd personally use a set of GM LS7 lifters and reuse your spider and dog bones. 12499225 is the set of 16 lifters.
You will definitely want to measure your pushrod length before you order them. $20 for a pushrod length checking tool is worth the investment. As for the throttlebody, the stocker is fine for what you're doing. It will flow more air than your engine will be able to draw through it.
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