355 help
355 help 355 help
ok i was thinking of going with a
stock crank
6" scat forged rod
mahle power pak pistons
le2 heads and cam
arp main studs and head bolts
a few of my questions are
should i have the block decked if so how much? I want to stay around11,5:1 compression
what would be a good oil pan to run or should i keep the stock pan,also what should i do for a oil pump?
what series of clevite bearing should i use?
anyone have a simalar setup that can give me some insight?
if you have a 355 setup please post what you have and your ETs and RWHP #s
thanks in advance for any info also if you have any part numbers for me please list them
ok i was thinking of going with a
stock crank
6" scat forged rod
mahle power pak pistons
le2 heads and cam
arp main studs and head bolts
a few of my questions are
should i have the block decked if so how much? I want to stay around11,5:1 compression
what would be a good oil pan to run or should i keep the stock pan,also what should i do for a oil pump?
what series of clevite bearing should i use?
anyone have a simalar setup that can give me some insight?
if you have a 355 setup please post what you have and your ETs and RWHP #s
thanks in advance for any info also if you have any part numbers for me please list them
Clevite 77's "P" Series
If you want higher compression look at the Mr. Gasket Head Gaskets for an LT1 as well...they are the best for compression unless you wanna pay 100 a damned gasket from Cometic. The Mr Gaskets are .026 thickness and 4.100 Bore. They are what I use.
Keep the stock Oil Pan and Stock Oil Pump...they are fine, just tack weld the pickup to the pump so it doesnt fall off (LT1's are notorious for that). I have pics if you need.
I have almost the same setup, just stock replacment pistons and rods, not mahle's and scats, and my cam is a custom grind.
I will have ET's and RWHP numbers sometime within the next week and a half
If you want higher compression look at the Mr. Gasket Head Gaskets for an LT1 as well...they are the best for compression unless you wanna pay 100 a damned gasket from Cometic. The Mr Gaskets are .026 thickness and 4.100 Bore. They are what I use.
Keep the stock Oil Pan and Stock Oil Pump...they are fine, just tack weld the pickup to the pump so it doesnt fall off (LT1's are notorious for that). I have pics if you need.
I have almost the same setup, just stock replacment pistons and rods, not mahle's and scats, and my cam is a custom grind.
I will have ET's and RWHP numbers sometime within the next week and a half
I prefer the clevite H series bearings
as far as decking the block goes you need to take into consideration the combustion chamber cc's the volume of the valve reliefs as well as trying to get your quench distance to ~.040. Some people run the quench a little tighter than that but on a street motor all the research I have done has always led me to ~.040 quench. So I guess if we are going to help you out we need to know the volume of your combustion chambers
as far as decking the block goes you need to take into consideration the combustion chamber cc's the volume of the valve reliefs as well as trying to get your quench distance to ~.040. Some people run the quench a little tighter than that but on a street motor all the research I have done has always led me to ~.040 quench. So I guess if we are going to help you out we need to know the volume of your combustion chambers
ok, without a combustion chamber cc it is kind of hard but I will try and give you an idea. Ported LT1 heads usually finish up between 56-58 cc's so if you have not had them ported yet I would have them decked to a 56 cc chamber. The mahle power packs only come in a few different reliefs so go with the flat tops with a 5cc valve relief. Definately have the block zero decked and use a .039 head gasket which is cheap and readily available. With this you will achieve .039 quench and an 11.46:1 static compression ratio. There is more to the compression ratio story when it comes to cam choice and your dynamic compression ratio but this will give you somewhere to start.
I would stick with the stock pan and a standard volume, standard pressure pump. On my build I used a standard/standard pump but I opted for the .750 inlet and a larger pickup
