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1978 Avanti Ii Parts
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TCI
311000 StreetFighter TH350 Transmission for 1969-1979 GM V8 Vehicles, 6 in. Short Tailshaft, Non Lock-Up
Part Number: 890-311000
$2,99595
Ships TomorrowFree shipping
Lowest price guarantee
TCI
311000 StreetFighter TH350 Transmission for 1969-1979 GM V8 Vehicles, 6 in. Short Tailshaft, Non Lock-Up
Part Number: 890-311000
Ships TomorrowFree shippingLowest Price Guarantee$2,99595
TCI
312000 Drag Race GM TH350 (Turbo 350) Transmission w/Full Manual & Forward Shift for Small & Big Block Chevy
Part Number: 890-312000
$1,99676$2,495.95
YOU SAVE
$499.19Ships TomorrowFree shippingLowest price guarantee
TCI
312000 Drag Race GM TH350 (Turbo 350) Transmission w/Full Manual & Forward Shift for Small & Big Block Chevy
Part Number: 890-312000
Ships TomorrowFree shippingLowest Price Guarantee$1,99676 $2,495.95
YOU SAVE
$499.19
TCI
312500 Drag Race Transmission Chevy TH350
Part Number: 890-312500
$2,63676$3,295.95
YOU SAVE
$659.19Ships on 10/13/2026Free shippingLowest price guarantee
TCI
312500 Drag Race Transmission Chevy TH350
Part Number: 890-312500
Ships on 10/13/2026Free shippingLowest Price Guarantee$2,63676 $3,295.95
YOU SAVE
$659.19
COMETIC GASKETS
C15611-060 Chevrolet Gen-1 Small Block V8 Exhaust Manifold Gasket Set
Part Number: 245-C15611-060
$2791
Ships on 10/19/2026Lowest price guarantee
COMETIC GASKETS
C15611-060 Chevrolet Gen-1 Small Block V8 Exhaust Manifold Gasket Set
Part Number: 245-C15611-060
Ships on 10/19/2026Lowest Price Guarantee$2791
SPEEDMASTER
PCE279.1001 Head Stud Kit for 1955-2000 Chevy Small Block 262-400 ci V8
Part Number: 746-PCE279.1001
$8570
Ships on 12/17/2026Lowest price guarantee
SPEEDMASTER
PCE279.1001 Head Stud Kit for 1955-2000 Chevy Small Block 262-400 ci V8
Part Number: 746-PCE279.1001
Ships on 12/17/2026Lowest Price Guarantee$8570
![PCE314.1101.03 Valve Covers Pair, without Breather Holes , Tall for Small Block Chevy [Black]](https://www.jegs.com/images/mini_100/700/746/746-pce314110103.jpg)
SPEEDMASTER
PCE314.1101.03 Valve Covers Pair, without Breather Holes , Tall for Small Block Chevy [Black]
Part Number: 746-PCE314110103
$12780
Ships TomorrowLowest price guarantee![PCE314.1101.03 Valve Covers Pair, without Breather Holes , Tall for Small Block Chevy [Black]](https://www.jegs.com/images/mini_200/700/746/746-pce314110103.jpg)
SPEEDMASTER
PCE314.1101.03 Valve Covers Pair, without Breather Holes , Tall for Small Block Chevy [Black]
Part Number: 746-PCE314110103
Ships TomorrowLowest Price Guarantee$12780
ATK ENGINES
VC11 Remanufactured Crate Engine for 1978-1985 Chevy & GMC C/K Truck & G/P Van with 350ci/5.7L V8
Part Number: 059-VC11
$2,72077
Ships TomorrowLowest price guarantee
ATK ENGINES
VC11 Remanufactured Crate Engine for 1978-1985 Chevy & GMC C/K Truck & G/P Van with 350ci/5.7L V8
Part Number: 059-VC11
Ships TomorrowLowest Price Guarantee$2,72077
PROFORM
Valve Cover Gasket Set for Small Block Chevy Made From Neoprene Rubber with Reinforce Steel Core
Part Number: 778-66001
$2499
Ships TomorrowLowest price guarantee
PROFORM
Valve Cover Gasket Set for Small Block Chevy Made From Neoprene Rubber with Reinforce Steel Core
Part Number: 778-66001
Ships TomorrowLowest Price Guarantee$2499
![OE Replacement Harmonic Balancer for Small Block and Big Block Chevy [Internally Balanced, 6000 RPM]](https://www.jegs.com/images/mini_100/700/778/778-66510.jpg)
PROFORM
OE Replacement Harmonic Balancer for Small Block and Big Block Chevy [Internally Balanced, 6000 RPM]
Part Number: 778-66510
$9199
Ships TomorrowLowest price guarantee![OE Replacement Harmonic Balancer for Small Block and Big Block Chevy [Internally Balanced, 6000 RPM]](https://www.jegs.com/images/mini_200/700/778/778-66510.jpg)
PROFORM
OE Replacement Harmonic Balancer for Small Block and Big Block Chevy [Internally Balanced, 6000 RPM]
Part Number: 778-66510
Ships TomorrowLowest Price Guarantee$9199