holley systemax II
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Senior Member
Joined: Dec 2007
Posts: 614
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From: Missouri
Car: Camaro RS
Engine: obd2 350 lt1
Transmission: T56
Axle/Gears: 3.23
holley systemax II
Will this kit work with my l05 short block? its not the factory one its a gmparts shortblock i think its a 4bolt main and flat top pistons thats all i know for sure does anyone have this kit?
Joined: Mar 2000
Posts: 43,187
Likes: 43
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
It'll work. Is this the roller or flat tappet cam version?
If the pistons are stock Goodwrench, they'll be dished with valve reliefs.
If the pistons are stock Goodwrench, they'll be dished with valve reliefs.
Thread Starter
Senior Member
Joined: Dec 2007
Posts: 614
Likes: 3
From: Missouri
Car: Camaro RS
Engine: obd2 350 lt1
Transmission: T56
Axle/Gears: 3.23
Re: holley systemax II
its roller but are you sure they have valve releifs? If they dont how much are the pink rods?
Joined: Mar 2000
Posts: 43,187
Likes: 43
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Exactly what GM engine is this? "gmparts" doesn't really match anything I've heard. I assumed "Goodwrench", which is a "service van fleet" type replacement engine. GM Performance Parts is a slightly different story, but most of them still had pistons with at least a slight dish.
Joined: Mar 2000
Posts: 43,187
Likes: 43
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
They typically had pistons with dish/valve reliefs totaling about 12cc. True flat tops will have valve reliefs with totaling around 5cc. If there are no valve reliefs, it's full dish pistons, which are 20+cc.
Pink rods were replaced with PM rods sometime in the early 90's. PM's were cheaper and performed just as well as the pinks. ARP rod bolts are more important than pink vs. PM rods.
Pink rods were replaced with PM rods sometime in the early 90's. PM's were cheaper and performed just as well as the pinks. ARP rod bolts are more important than pink vs. PM rods.
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