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Old 09-09-2008, 12:45 PM   #1
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Combustion Chamber Size on L98?
Does anyone know what the combustion chamber size is on stock L98 heads? Is it 64cc?
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Old 09-09-2008, 12:57 PM   #2
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Re: Combustion Chamber Size on L98?
No, I believe they are 76cc heads on L98 350's and the 305's had 58 cc heads.
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383sbc|11.8:1|HSR intake, ram air|Comp Cam XR294|30# inj.|3600 Edge Racing|Walbro 255lph|mezziere electric water pump|Jegs 197cc Aluminum heads|Hooker long tubes, 3inch duals|Moroso bullets|3.73 gears|moroso springs|Lakewood struts/traction bars|275's front, 315 R17's rear|Custom Tuned
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Old 09-09-2008, 01:01 PM   #3
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Re: Combustion Chamber Size on L98?
64cc for the L98 iron heads, 58cc (+/-) for the L98 aluminum heads.
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Old 09-09-2008, 01:08 PM   #4
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Re: Combustion Chamber Size on L98?
Hmmm, that's interesting, I was told that 76cc was the stock L98 cast iron head, that's why they have like 9.5:1cr. I think you're right, maybe the stock pistons are dish or flat top pistons......I can't remember.
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What is the Formula?
383sbc|11.8:1|HSR intake, ram air|Comp Cam XR294|30# inj.|3600 Edge Racing|Walbro 255lph|mezziere electric water pump|Jegs 197cc Aluminum heads|Hooker long tubes, 3inch duals|Moroso bullets|3.73 gears|moroso springs|Lakewood struts/traction bars|275's front, 315 R17's rear|Custom Tuned
Best Et - 11.70 @ 116 mph 1.61 60 ft. /on slicks
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Old 09-09-2008, 01:58 PM   #5
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Re: Combustion Chamber Size on L98?
76cc are older heads, whoever told you they were 76 was wrong.
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Old 09-09-2008, 02:42 PM   #6
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Re: Combustion Chamber Size on L98?
Yeah, I just double checked it you're right.
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What is the Formula?
383sbc|11.8:1|HSR intake, ram air|Comp Cam XR294|30# inj.|3600 Edge Racing|Walbro 255lph|mezziere electric water pump|Jegs 197cc Aluminum heads|Hooker long tubes, 3inch duals|Moroso bullets|3.73 gears|moroso springs|Lakewood struts/traction bars|275's front, 315 R17's rear|Custom Tuned
Best Et - 11.70 @ 116 mph 1.61 60 ft. /on slicks
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Old 09-09-2008, 02:42 PM
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