Found some jelliton stuff inside heads please advice

[SMWS6TA]

I know of a 5.3L short block near me but it's an 07 year. You would have to press off the 58x wheel and press on the 24x reluctor wheel.

[mrr23]

so I must have damaged the engine when I heard/felt the explosions

you responded so quick thanks I did edit: and ask about a junkyard engine.

I see these engines on ebay seams kindof risky.

MRR23 I see you got a new gen 5 congrates hope you're enjoying her.

everyday i drive it

[qwik219d9]

Scott since the 02 van is kindof old it mite be difficult to find a decent engine.

I don't have much resources other than LKQ I understand there are alot of junk yards in calera,AL.

what type of engine is the last digit ending in 8 mean

vin# of van 1GBFG15R221146761

[SMWS6TA]

It is the L31 engine 5.7L Vortec.


The Vortec 5700 L31 (Vin code 8th digit "R") is a V8 truck engine. Displacement is 5.7 L. It is the last production Generation I small-block from Chevrolet. The cylinder heads feature combustion chambers and intake ports very similar to those of the LT1 V8, but without the reverse-flow cooling. As such, the L31 head is compatible with all older small-blocks, and is a very popular upgrade. It offers the performance of more expensive heads, at a much lower cost. It does, however, require a specific intake manifold (A 5.7L, 350 CI L31, Vortec engine has eight bolts attaching the intake manifold or four per head, as opposed to the "traditional" six bolts per head; twelve in total found on older Chevrolet small blocks). The L31 was replaced by the 5.3 L 5300 LM7. The 2002 model year was the final year for the L31 5.7 L small block V8 whose origins date back to 1955. The Vortec 5700 produces 255 hp (190 kW) to 350 hp (261 kW) at 4600 rpm and 330 lb⋅ft (447 N⋅m) to 350 lb⋅ft (475 N⋅m) of torque at 2800 rpm. It is currently being produced as a crate engine for marine applications and automotive hobbyists as the 'RamJet 350' with minor modifications. Known as the GEN 1+, this was the final incarnation of the 1955-vintage small block, ending production in 2005 with the last vehicle being a Kodiak/Topkick HD truck. Volvo Penta and Mercury Marine still produces the L31. The "MARINE" intake is a potential upgrade for L31 trucks despite its cast iron construction. Using this "MARINE" intake will allow the use of common types of Bosch-style injectors with various flow rates while still maintaining emission compliance.
L31 applications:

• 1996–2002 Chevrolet Express/GMC Savana full-size vans
• 1996–1999 Chevrolet/GMC C/K full-size trucks
• 1996–1999 Chevrolet Suburban/GMC Suburban full-size long-wheelbase SUVs
• 1996–2000 Chevrolet Tahoe/GMC Yukon (and 2000 Tahoe Limited and 2000 Tahoe Z71 models) full-size short-wheelbase SUVs
• 1999–2000 Cadillac Escalade

TBI L31 applications

• 1996 G-Series vans over 8,500 lb (3,856 kg) GVW w/ 4L80E transmission

[qwik219d9]

It is the L31 engine 5.7L Vortec. yes Sir that's the engine

yes Sir that's the engine

I still can't understand what happened to the engine that was running although is was skipping on 2 cylinders it did run untill the mannie swap?

edit I see that some vans came w/ 8 litre curious if that engine would be a direct swap from the 5.7? like can someone logon to the vans PC w/ a tech2 and enter new engine as 8 liters?