Short Blocks

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TSP 376 C.I.D. LS3/L99/LSA Short-Block

SKU: 25-376LS3SB

25-376LS3SB

$6,652.99
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TSP 392 or 395 C.I.D. Assembled Short-Block

SKU: 25-395SB

25-395SB

$5,962.99
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TSP 418 C.I.D. LS3/L99/LSA Short-Block

SKU: 25-418LS3SB

25-418LS3SB

$7,225.99
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TSP 427 or 429 C.I.D. LS3/L99/LSA Short-Block

SKU: 25-429LS3SB

25-429LS3SB

$7,622.99
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Texas Speed & Performance Resleeved Aluminum Gen 5 LT1/4 Engine Block, Outright

SKU: 25-LT-ResleevedBlock

25-LT-ResleevedBlock

$4,786.99
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TSP 347 to 398 C.I.D. Resleeved Gen 4 Aluminum Short-Block, 3.622" Stroke Applications

SKU: 25-RESL3622SB

25-RESL3622SB

$7,968.99
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TSP 402-440 C.I.D. Resleeved Gen 4 Aluminum Short-Block, 4.00" Stroke Applications

SKU: 25-RESL400SB

25-RESL400SB

$8,343.99
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TSP 413-454 C.I.D. Resleeved Gen 4 Aluminum Short-Block, 4.10/4.125" Stroke Applications

SKU: 25-RESL41025SB

25-RESL41025SB

$8,454.99
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TSP 328 C.I.D. 5.3L Assembled Short-Block

SKU: 25-TSP32853SB

25-TSP32853SB

$5,483.99
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TSP 347 C.I.D. Assembled Short-Block

SKU: 25-TSP347SB

25-TSP347SB

$5,526.99
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TSP 363 C.I.D. 5.3L-Based Assembled Short-Block

SKU: 25-TSP36353SB

25-TSP36353SB

$6,133.99
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TSP 370 C.I.D. LQ9 Short-Block

SKU: 25-TSP370SB

25-TSP370SB

$5,152.99
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TSP 376 CID Gen 5 LT1 Short-Block

SKU: 25-TSP376-LT1-SB

25-TSP376-LT1-SB

$7,758.99
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TSP 376 CID Sleeved Gen 5 LT1/LT4 Short-Block, Stock Stroke

SKU: 25-TSP376-RESLLT1SB

25-TSP376-RESLLT1SB

$9,015.99
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TSP 387/388 C.I.D. LSx Short-Block

SKU: 25-TSP387-X-SB

25-TSP387-X-SB

$8,640.99
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TSP 416 - 427 CID 4.00" Stroke Sleeved Gen 5 LT1/LT4 Short-Block

SKU: 25-TSP400-RESLLT1SB

25-TSP400-RESLLT1SB

$9,346.99
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TSP 408 C.I.D. LSx Short-Block

SKU: 25-TSP408LSxSB

25-TSP408LSxSB

$8,850.99
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TSP 408 C.I.D. LQ9 Short-Block

SKU: 25-TSP408SB

25-TSP408SB

$6,123.99
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TSP 416 CID Gen 5 LT1 Short-Block

SKU: 25-TSP416-LT1SB

25-TSP416-LT1SB

$8,045.99
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TSP 416 C.I.D. LSx Short-Block

SKU: 25-TSP416LSxSB

25-TSP416LSxSB

$8,850.99
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TSP 418 or 421 C.I.D. LQ9 Short-Block

SKU: 25-TSP421SB

25-TSP421SB

$6,034.99
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TSP 427 C.I.D. LSx Short-Block

SKU: 25-TSP427LSxSB

25-TSP427LSxSB

$8,971.99
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TSP 427 C.I.D. LS7 Short-Block

SKU: 25-TSP427SB

25-TSP427SB

$8,652.99
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TSP 438 or 441 C.I.D. LSx Short-Block

SKU: 25-TSP441LSxSB

25-TSP441LSxSB

$9,291.99

Looking for an Affordable, In Stock, Plug and Play wiring harness for your LS Swap? PSI sells Standalone Wiring Harnesses for GM Gen II, III, IV, & V LS/LT based engines and transmissions. These harnesses include the Gen II LT1/LT4, Gen III (24x) LS1/LS6 and Vortec Truck Engines as well as Gen IV (58x) LS2, LS3, LS7, & Vortec and GEN V LT / ECOTEC3 Engines. All PSI Harnesses are Made in the USA. In addition to wiring harnesses, PSI carries Holley Products, Vintage Air A/C, Dakota Digital Gauges, HPTuners and PCM programming, Fuel Pump Kits, Engine Sensors, Extension Harnesses, Replacement GM connector pigtails and a complete line of hardware to complete your conversion needs!

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Short Blocks

TSP 376 C.I.D. LS3/L99/LSA Short-Block

TSP 392 or 395 C.I.D. Assembled Short-Block

TSP 418 C.I.D. LS3/L99/LSA Short-Block

TSP 427 or 429 C.I.D. LS3/L99/LSA Short-Block

Texas Speed & Performance Resleeved Aluminum Gen 5 LT1/4 Engine Block, Outright

TSP 347 to 398 C.I.D. Resleeved Gen 4 Aluminum Short-Block, 3.622" Stroke Applications

TSP 402-440 C.I.D. Resleeved Gen 4 Aluminum Short-Block, 4.00" Stroke Applications

TSP 413-454 C.I.D. Resleeved Gen 4 Aluminum Short-Block, 4.10/4.125" Stroke Applications

TSP 328 C.I.D. 5.3L Assembled Short-Block

TSP 347 C.I.D. Assembled Short-Block

TSP 363 C.I.D. 5.3L-Based Assembled Short-Block

TSP 370 C.I.D. LQ9 Short-Block

TSP 376 CID Gen 5 LT1 Short-Block

TSP 376 CID Sleeved Gen 5 LT1/LT4 Short-Block, Stock Stroke

TSP 387/388 C.I.D. LSx Short-Block

TSP 416 - 427 CID 4.00" Stroke Sleeved Gen 5 LT1/LT4 Short-Block

TSP 408 C.I.D. LSx Short-Block

TSP 408 C.I.D. LQ9 Short-Block

TSP 416 CID Gen 5 LT1 Short-Block

TSP 416 C.I.D. LSx Short-Block

TSP 418 or 421 C.I.D. LQ9 Short-Block

TSP 427 C.I.D. LSx Short-Block

TSP 427 C.I.D. LS7 Short-Block

TSP 438 or 441 C.I.D. LSx Short-Block

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