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 El Camino Presidents
Part fits the following years:1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988


1978-88 El Camino Transmission, TH350/TH400 Performance TH350 (9" Ext. Housing)

Part# CH25831


Mfg# 13300-9

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SAVE: $99.96 Retail: $1099.95

OPGI Price: $999.99

Part Type: (P) High Performance, designed to improve performance TH = Turbo Hydramantic shift transmissions
Years: Sold As: EACH
2017 Late El Camino Catalog Page: 227

Performance automatic transmissions that’s built to take it

  • NOTE1: These items are high-performance and are not eligible for any further discounts or promotional pricing.
  • SHIP NOTE: This item cannot be shipped FedEx Ground and requires Truck Freight Delivery which must be prepaid by credit or check (no C.O.D). Please call or email us for an exact quote. more info

Whether you have a stock engine or one that's built-to-the-hilt, you don't want to have an automatic trans that just slides into gear. You need one that shifts positively into each gear, especially at wide-open throttle. That's why we sell these performance automatic transmissions from California Performance Transmission. With more than five decades of performance automatic transmission rebuilding experience, CPT transmissions are designed for the rigors of the street and strip. They use heavy-duty clutches and bands along with a complete blueprinting that includes modifications for improved lubrication and increased thrust capacity. The driver has their choice of either complete manual or automatic control of the transmission because of the CPT manual/automatic hi-tech valve body kit installed in each transmission. The TH350 uses the standard gear ratios of 2.52 first, 1.52 second and 1.00 third. The TH400 has a 2.48 first, 1.48 second and 1.00 third. These street/strip transmissions are exact bolt-in replacements for your stock transmission and have all of the heavy-duty features described above.

Please note, these transmissions have a full 90-day warranty and are then subsequently guaranteed against defective workmanship for two full years from the purchase date. After 90 days, for two years, California Performance Transmissions will completely rebuild or overhaul under warranty, the transmission for $250.00 plus hard parts to the original owner, or $300.00 plus hard parts, to any subsequent owner, if warranty is transferred. This overhaul or rebuild includes a new factory warranty.

Make & ModelYear RangeApplication Details
Chevrolet Chevelle1964-1977 TH350 (9" Ext. Housing)
Chevrolet Malibu1978-1988 TH350 (9" Ext. Housing)
Chevrolet El Camino1964-1977 TH350 (9" Ext. Housing)
Chevrolet El Camino1978-1988 TH350 (9" Ext. Housing)
Chevrolet Monte Carlo1970-1977 TH350 (9" Extension Housing)
Chevrolet Monte Carlo1978-1988 TH350 (9" Ext. Housing)
Buick Regal1978-1987 TH350 (9" Ext. Housing)
Buick T-Type1978-1987 TH350 (9" Ext. Housing)
Buick Grand National1978-1987 TH350 (9" Ext. Housing)
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