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Old 12-31-2025, 08:13 PM
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Speargun Speargun is offline
Chief Ponti-yacker
 
Join Date: Sep 2005
Location: Silver Springs, FL
Posts: 942
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Finally got around to digging up the specs for this engine.

IAII aluminum block, 4.35 bore
SCAT Forged Crankshaft 4.5" Stroke,
SCAT H-Beam 6.8" Rods w/ARP 2000 Bolts,
Race Tech Dish Pistons, 29cc
Comp Cams Hydraulic Roller (1.65) .660/.629 252/262 @ .050.
Morrell High RPM Hydraulic Lifters
New timing cover 69-79
Cloyes 9 Keyway Billet, True Roller
1 Piece Reinforced Oil Pan Gasket
Canton road race oil pan, pick up, and Mellling oil pump

Speedmaster 72cc, CNC "Fast Burn" Chamber
CNC Port heads includes head bolt sleeves. 340cfm
Manley Valves, 2.19/1.77
Springs, Retainers, Seals, and Locks for .650" lift
Deck Clearance .050" - "Piston .010 Below Deck & .040 Gasket"
Head Studs for Edlebrock/Speedmaster Heads on Aluminum Block

Static Compresion Ratio 10.67:1
Dynamic Compresion Ratio 7.997:1

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1967 Firebird Restoration 2005 - 1/25/2017