Availability
1990 Flatout Gaskets Gaskets & Seals
Head Gaskets, RCC, 4.520 in. Bore, 0.060 in. Thickness, Rubber Coated Copper, Chevy, Big Block, NRE-4/GB-4 Pro Stock/Pro Mod Engine 4.9 Bore, Pair
Part Number: FOG-900564520
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Head Gaskets, RCC, 4.010 in. Bore, 0.090 in. Thickness, Rubber Coated Copper, Chevy, Small Block, Pair
Part Number: FOG-900194010
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Head Gaskets, RCC, 4.060 in. Bore, 0.090 in. Thickness, Rubber Coated Copper, Chevy, Small Block, Pair
Part Number: FOG-900194060
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Head Gaskets, RCC, 4.200 in. Bore, 0.090 in. Thickness, Rubber Coated Copper, Chevy, Small Block, Pair
Part Number: FOG-900194200
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Head Gaskets, RCC, 4.630 in. Bore, 0.100 in. Thickness, Rubber Coated Copper, Chevy, Big Block, Pair
Part Number: FOG-9002104630
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Head Gaskets, RCC, 4.250 in. Bore, 0.030 in. Thickness, Rubber Coated Copper, Chevy, Big Block, Pair
Part Number: FOG-900234250
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Head Gaskets, RCC, 4.320 in. Bore, 0.030 in. Thickness, Rubber Coated Copper, Chevy, Big Block, Pair
Part Number: FOG-900234320
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Head Gaskets, RCC, 4.570 in. Bore, 0.030 in. Thickness, Rubber Coated Copper, Chevy, Big Block, Pair
Part Number: FOG-900234570
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Head Gaskets, RCC, 4.630 in. Bore, 0.030 in. Thickness, Rubber Coated Copper, Chevy, Big Block, Pair
Part Number: FOG-900234630
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Head Gaskets, RCC, 4.320 in. Bore, 0.040 in. Thickness, Rubber Coated Copper, Chevy, Big Block, Pair
Part Number: FOG-900244320
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Head Gaskets, RCC, 4.550 in. Bore, 0.040 in. Thickness, Rubber Coated Copper, Chevy, Big Block, 7/16 in. Head Bolts, Pair
Part Number: FOG-900244550
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Head Gaskets, RCC, 4.570 in. Bore, 0.040 in. Thickness, Rubber Coated Copper, Chevy, Big Block, Pair
Part Number: FOG-900244570
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Head Gaskets, RCC, 4.250 in. Bore, 0.050 in. Thickness, Rubber Coated Copper, Chevy, Big Block, Pair
Part Number: FOG-900254250
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Head Gaskets, RCC, 4.320 in. Bore, 0.050 in. Thickness, Rubber Coated Copper, Chevy, Big Block, Pair
Part Number: FOG-900254320
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Head Gaskets, RCC, 4.480 in. Bore, 0.050 in. Thickness, Rubber Coated Copper, Chevy, Big Block, 7/16 in. Head Bolts, Pair
Part Number: FOG-900254480
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Head Gaskets, RCC, 4.630 in. Bore, 0.050 in. Thickness, Rubber Coated Copper, Chevy, Big Block, Pair
Part Number: FOG-900254630
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Head Gaskets, RCC, 4.250 in. Bore, 0.060 in. Thickness, Rubber Coated Copper, Chevy, Big Block, Pair
Part Number: FOG-900264250
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Head Gaskets, RCC, 4.550 in. Bore, 0.060 in. Thickness, Rubber Coated Copper, Chevy, Big Block, 7/16 in. Head Bolts, Pair
Part Number: FOG-900264550
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Head Gaskets, RCC, 4.570 in. Bore, 0.060 in. Thickness, Rubber Coated Copper, Chevy, Big Block, Pair
Part Number: FOG-900264570
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Head Gaskets, RCC, 4.520 in. Bore, 0.030 in. Thickness, Rubber Coated Copper, Chevy, Big Block, GM Pro Stock/Pro Mod Engine with 4.9 Bore Center, Pair
Part Number: FOG-901634520
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Head Gaskets, RCC, 4.570 in. Bore, 0.030 in. Thickness, Rubber Coated Copper, Chevy, Big Block, GM Pro Stock/Pro Mod Engine with 4.9 Bore Center, Pair
Part Number: FOG-901634570
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Head Gaskets, RCC, 4.630 in. Bore, 0.030 in. Thickness, Rubber Coated Copper, Chevy, Big Block, GM Pro Stock/Pro Mod Engine with 4.9 Bore Center, Pair
Part Number: FOG-901634630
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Head Gaskets, RCC, 4.700 in. Bore, 0.030 in. Thickness, Rubber Coated Copper, Chevy, Big Block, GM Pro Stock/Pro Mod Engine with 4.9 Bore Center, Pair
Part Number: FOG-901634700
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Head Gaskets, RCC, 4.520 in. Bore, 0.040 in. Thickness, Chevy, Big Block, GM Pro Stock/Pro Mod Engine with 4.9 Bore Center, 7/16 in. Head Studs, Pair
Part Number: FOG-901644520
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Head Gaskets, RCC, 4.570 in. Bore, 0.040 in. Thickness, Rubber Coated Copper, Chevy, Big Block, GM Pro Stock/Pro Mod Engine with 4.9 Bore Center, Pair
Part Number: FOG-901644570
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
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